TYG Tortoise Energy Infrastructure Corporation

Item 1. Report to Stockholders.

(a) The report to Shareholders is attached herewith.

Annual Report | November 30, 2021

2021 Annual Report

Closed-End Funds (Restated Annual Report For TYG and NTG)

Tortoise

2021 Annual Report to Stockholders

This combined report provides you with a comprehensive review of our funds that span essential assets.

TTP and TPZ distribution policies

Tortoise Pipeline & Energy Fund, Inc. (“TTP”) and Tortoise Power and Energy Infrastructure Fund, Inc. (“TPZ”) are relying on exemptive relief permitting them to make long-term capital gain distributions throughout the year. Each of TTP and TPZ, with approval of its Board of Directors (the “Board”), has adopted a managed distribution policy (the “Policy”). Annual distribution amounts are expected to fall in the range of 7% to 10% of the average week-ending net asset value (“NAV”) per share for the prior fiscal semi-annual period. In accordance with its Policy, TTP distributes a fixed amount per common share, currently $0.37, each quarter to its common shareholders. Prior to August 2021, the quarterly distribution rate was $0.16. TPZ distributes a fixed amount per common share, currently $0.06, each month to its common shareholders. Prior to August 2021, the monthly distribution rate was $0.05. These amounts are subject to change from time to time at the discretion of the Board. Although the level of distributions is independent of TTP’s and TPZ’s performance, TTP and TPZ expect such distributions to correlate with its performance over time. Each quarterly and monthly distribution to shareholders is expected to be at the fixed amount established by the Board, except for extraordinary distributions in light of TTP’s and TPZ’s performance for the entire calendar year and to enable TTP and TPZ to comply with the distribution requirements imposed by the Internal Revenue Code. The Board may amend, suspend or terminate the Policy without prior notice to shareholders if it deems such action to be in the best interests of TTP, TPZ and their respective shareholders. For example, the Board might take such action if the Policy had the effect of shrinking TTP’s or TPZ’s assets to a level that was determined to be detrimental to TTP or TPZ shareholders. The suspension or termination of the Policy could have the effect of creating a trading discount (if TTP’s or TPZ’s stock is trading at or above net asset value), widening an existing trading discount, or decreasing an existing premium. You should not draw any conclusions about TTP’s or TPZ’s investment performance from the amount of the distribution or from the terms of TTP’s or TPZ’s distribution policy. Each of TTP and TPZ estimates that it has distributed more than its income and net realized capital gains; therefore, a portion of your distribution may be a return of capital. A return of capital may occur, for example, when some or all of the money that you invested in TTP or TPZ is paid back to you. A return of capital distribution does not necessarily reflect TTP’s or TPZ’s investment performance and should not be confused with “yield” or “income.” The amounts and sources of distributions reported are only estimates and are not being provided for tax reporting purposes. The actual amounts and sources of the amounts for tax reporting purposes will depend upon TTP’s and TPZ’s investment experience during their fiscal year and may be subject to changes based on tax regulations. TTP and TPZ will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

2021 Annual Report | November 30, 2021

Closed-end Fund Comparison

Name/Ticker

Primary focus

Structure

Total assets ($ millions)1

Portfolio mix by asset type1,2

Portfolio mix by structure1,2

Tortoise Energy Infrastructure Corp. NYSE: TYG Inception: 2/2004

Energy Infrastructure

C-corp

$574.72

Tortoise Midstream Energy Fund, Inc. NYSE: NTG Inception: 7/2010

Natural Gas Infrastructure

C-corp

$279.5

Tortoise Pipeline & Energy Fund, Inc. NYSE: TTP Inception: 10/2011

North American pipeline companies

Regulated investment company

$80.9

Tortoise Energy Independence Fund, Inc. NYSE: NDP Inception: 7/2012

North American oil & gas producers

Regulated investment company

$51.1

Tortoise Power and Energy Infrastructure Fund, Inc. NYSE: TPZ Inception: 7/2009

Power & energy infrastructure companies (Fixed income & equity)

Regulated investment company

$123.0

Ecofin Sustainable and Social Impact Term Fund NYSE: TEAF Inception: 3/2019

Essential assets

Regulated investment company

$260.2

(unaudited)

Tortoise

2021 Annual Report to closed-end fund stockholders

Dear stockholder

After years of suboptimal returns, energy was the top performing sector in 2021. The broad energy sector performance surged in spite of investor concerns about the COVID-19 Omicron variant’s impact on global energy demand. The global economic recovery is expected to continue into 2022, driving further demand for essential assets and services including energy, senior living facilities and high-quality in-person education.

Energy and power infrastructure

The broader energy sector, as represented by the S&P Energy Select Sector^® Index, finished the fiscal year ending November 30, 2021, returning 47.1%. Global underinvestment resulting from environmental, social and governance (ESG) commitments and energy transition is likely to keep global inventories balances for all energy commodities tight for the foreseeable future, a dynamic that presents higher but perhaps more volatile prices.

Throughout 2021 OPEC+ producers closely managed the crude oil market resulting in a drawdown in inventories. A tighter market led to rising commodity prices even with bouts of the Delta and Omicron COVID variants during the second half of 2021. Despite uncertainty, OPEC+ maintained plans to increase production by 400,000 barrels per month. Various OPEC+ countries face obstacles to raising production, complicating assessments of the actual amount of supply that will be added over the next year. Finally, in 2022 the OPEC+ group’s spare capacity is in focus. If spare capacity is lower than market participants assume, prices could be biased towards further upside.

In North America, higher prices spurred a revival of shale drilling. The Permian, America’s biggest oil field, was the primary driver of production growth. In fact, during the fourth quarter, production within the basin reached an all-time high of almost 5.0 million barrels per day.¹ The surge is driven by private operators, rather than the publicly traded companies that fueled the previous booms. For 2022, the Energy Information Agency (EIA) forecasts U.S. production will increase from 11.8 million barrels per day (b/d), up from 11.2 million b/d at the end of 2021.

In the second half of 2021, stress on global power markets pulled on all available natural gas supplies, pushing prices to the highest levels in over a decade. This led to switching to coal and even fuel oil for power generation. Due to its low emission intensity relative to other dispatchable fuels, natural gas is being called on to fill power generation gaps created by intermittent renewable sources. Demand for U.S. liquefied natural gas (LNG) was on full display in the fourth quarter. Exports of U.S. feedgas hit an incredible 13 billion cubic feet per day (bcf/d) during the quarter, or 14% of U.S. production.² From zero a few years ago, the U.S. is now the world’s largest LNG exporter.

Midstream energy, represented by the Tortoise North American Pipeline Index^SM, returned 31.1% during the fiscal year. This performance resulted in outperformance versus the S&P 500^® Index in calendar year 2021 for the first time since 2016. 2021 was a story of consistency for energy infrastructure fundamentals. A pandemic recovery coupled with growing free cash flow and the return of capital to shareholders were the main drivers of returns. 2021 EBITDA expectations were consistently revised higher based on increasing pipeline volumes as the economy reopened. Companies stayed disciplined on capital expenditures and used excess cash flow to reduce debt with stock buybacks as a secondary and growing consideration. At year-end, seventeen midstream companies maintained active equity buyback programs totaling more than $2 billion in buybacks through the third quarter of 2021. In 2022, we expect return of capital to continue with capital expenditures declining and free cash flow returned to investors via buybacks and higher distributions. Finally, with balance sheets strengthened, the industry could see additional mergers and acquisitions (M&A) as we saw in 2021 with exploration and production companies (E&Ps).

On the legislative front, the Congressional infrastructure bill was passed in November. Hydrogen received significant funding with targeted development of regional hubs presenting growth opportunities for energy infrastructure companies. Of more significance is the outcome of climate change legislation. If a bill is passed in 2022, it will likely focus more on tax credits rather than more restrictive, comprehensive climate policies. We believe the bill will also include regulatory support for existing infrastructure. For example, the expansion of Section 45Q tax credit would incentivize more widespread carbon capture adoption for harder to abate sectors such as steel, cement, and chemicals.

On the regulatory front, demand for low-cost U.S. natural gas created a need for additional natural gas pipelines and LNG export terminals. In the northeast Marcellus Basin, pipeline infrastructure is constrained. Despite this need, the regulatory environment remains incredibly challenging as evidenced by the recent cancellations of the Atlantic Coast Pipeline and the Constitution Pipeline. The one major pipeline under construction is the Mountain Valley Pipeline. The long-haul natural gas pipeline received key water permits during the fourth quarter with a couple hurdles to overcome before becoming operational. While LNG export facilities take time to construct, with the largest outstanding LNG opportunity, Cheniere Energy expects to advance their Corpus Christi stage 3 in 2022, once remaining investment and commercial parameters are met. Finally, Enbridge received final regulatory approval on its Line 3 crude oil pipeline project and started moving volumes during the fourth quarter, making it the largest crude oil project to come online in 2021.

Several events in 2021 reminded investors how critical energy infrastructure is to daily life. Notable events like Winter Storm Uri in Texas, the cyber-attack of the Colonial Pipeline, Hurricane Ida in the Gulf Coast, or U.S. LNG cargoes rapidly replenishing Europe’s low gas storage levels via LNG tankers all argue towards a holistic view towards energy transition. With the understanding that fossil fuels will remain critical to the economy for decades, we believe focusing on decarbonizing existing infrastructure is the best approach to reducing emissions.

(unaudited)

2021 Annual Report | November 30, 2021

Midstream companies concentrated on decarbonization throughout 2021. Sustainability reports included more granular detail than previous annual reports, net-zero emission targets were established, pledges were made to reduce methane intensity, and companies engaged with projects and growth opportunities around energy transition. Energy transition projects support the longevity of existing assets and cash flow growth. Fuels including carbon (through carbon capture and sequestration), hydrogen, renewable diesel, and renewable natural gas all create a pathway to a lower carbon future. Repurposing existing pipelines significantly reduces the capital expenditures versus building a new pipeline as we expect energy infrastructure companies to take advantage of the existing infrastructure already in the ground.

With inflation increasing throughout the year, many investors began to recognize midstream as an asset class with inflation protection. Pipelines typically have long-term contracts with inflation protection from regulated tariff escalators. Additionally, tariffs on regulated liquid pipelines typically include an inflation escalator. This allows increases aligned with the Producer Price Index (PPI) offering some protection from inflation. Through November 2021, the PPI increased by 9.0% from the prior year which could be a material driver of cash flows in 2022.

As the world economy continues to reopen, the energy sector is positioned for a reflation around increased energy demand. The focus continues to be on companies with strong balance sheets and exposure to the most competitive basins for hydrocarbon production, including the Permian and Marcellus basins. The fund also continues to emphasize export infrastructure, both LNG and liquefied petroleum gas (LPG).

The downstream portion of the energy value chain continues its recovery from the COVID-19 pandemic. The EIA sees refined product demand increasing 3% year over year driven largely by increases in jet fuel. U.S. demand for gasoline and distillate normalized in 2021 relative to 2019 levels while jet fuel demand is still down from pre-COVID levels. The natural gas liquids backdrop is strong entering 2022. NGL prices have been elevated on favorable fundamentals including constrained supply and low stockpiles. There has been particular strength in LPGs (liquid petroleum gases) where demand is driven by global population growth and improvements in living standards in Asia, notably in China and India.

Sustainable infrastructure

Renewable energy

The renewables sector had a difficult year in terms of share price performance— in part due to the starting point left by large gains from 2020. After being recognized in 2020 as a larger secular growth sector than previously realized, some near-term challenges to fundamental momentum emerged. A combination of fears around equipment cost inflation and its impact on development project returns, rising interest rates and their impact on discounted cash flows, and COVID-related development and construction delays and their impact on the pace of growth all conspired to question the robustness of the growth story. Consequently, concerns about near-term earnings growth prospects emerged for some companies, leading to negative near-term revisions, with attendant share price weakness, especially for smaller companies and unregulated companies who have less offsetting predictable businesses that provide greater visibility into their growth prospects.

At the same time, the sector saw improved policy frameworks in some emerging markets (particularly in China) but lost some momentum on the policy front in certain developed markets, which also had an adverse impact on the sector and the strategy. The following developments from late in the fourth quarter are worth highlighting:

California Net Energy Metering 3.0 (NEM 3.0): NEM allows customers who generate their own energy to receive a financial credit on their electric bills for any surplus energy sent to the grid. The Californian Public Utility Commission (CPUC) reviewed the financial benefit received in particular by rooftop solar customers and its proposed decision (NEM 3.0) was worse than expected, with lower prices for excess power and particularly with regard to a “connection fee”, which would introduce a new monthly fixed cost for future rooftop solar owners to remain connected to the grid. The reaction of the stocks exposed to rooftop solar reflected that worse-than-expected proposed decision. The final decision on NEM 3.0 is due at the end of January at the earliest, it is unlikely that the final decision will be even more onerous on the rooftop solar industry, and there is a chance that after the consultation period the outcome could be either neutral or improved relative to the proposal.

Build Back Better (BBB): The proposed US BBB bill seems to be highly uncertain at this stage, due to objections from a single Senator, whose vote is needed for passage. This development late in December was negative for investor sentiment across much of the energy transition space as the bill was not only a targeted form of financial support for renewables, storage, green hydrogen and electric vehicles, but importantly also signalled a somewhat unprecedented U.S. intent to accelerate decarbonization. We believe that current incentive policies such as the solar ITC (Investment Tax Credit) and wind PTC (Production Tax Credit) have a higher probability to be extended through a tax extenders package should BBB fail to be enacted in any form. However, policies that require new legislation – such as green hydrogen subsidization, Carbon Capture & Storage (CCS) incentives, standalone storage ITCs, domestic manufacturing credits – have a lower probability of making it into subsequent legislation, thereby removing the odds of an important positive catalyst. As with all political negotiations, these situations are fluid and could break in either direction.

(unaudited)

Waste transition

The sustainability trend in the U.S. remains strong, highlighted by increased efforts to reduce the landfilling of single-use waste, promote decarbonization across all economic sectors, and reduce greenhouse gas emissions. The yearend included many highlights that continue to support strong growth in the sustainability sector.

The Biden Administration indicated they will not support Small Refiners seeking waivers from their obligations under the Renewable Fuels Standards program, which encourages the usage of renewable fuels to reduce greenhouse gas (GHG) emissions in the transportation sector. As of mid-September 2021, there were 62 Small Refiner Exemptions (SRE’s), outstanding. If granted, these SREs would cause reduced demand and lower pricing for renewable fuel credits, known as Renewable Identification Numbers or RINs. Absent the granting of exemptions, pricing has remained strong and near all-time highs for D3 RINs involving the production of renewable natural gas from cellulosic organic waste.

The State of Washington enacted a Clean Fuel Standard law which requires the implementation by 2023 of reductions in greenhouse gas emissions per unit of transportation fuel energy to 10% below 2017 levels by 2028, and 20% below 2017 levels by 2035. Washington’s law creates an uninterrupted corridor of fuel credit support along the western region of North America, as California, Oregon, Washington, and British Columbia have each passed a Low Carbon Fuel Standard providing fuel credits for renewable fuels production. This geographic block is expected to create strong demand over the next decade for renewable fuels such as renewable natural gas, diesel and jet.

The Biden Administration announced its goal to increase the conversion of organic waste into Sustainable Aviation Fuel (SAF) to at least 3 billion gallons per year by 2030, which would reduce U.S. aviation GHG emissions by 20%, and to at least 35 billion gallons per year by 2050, which would reduce U.S. aviation GHG emissions by 100%, thereby rendering the sector Net-Zero. These SAF goals are ambitious, in that current U.S. SAF production is only 4.5 million gallons per year.

The dramatic increase in actual (and expected) biofuel production capacity has led to significant demand and price inflation for waste feedstocks, such as vegetable oils, waste oils, and animal fats, with feedstock prices more than doubling year-over-year. In addition, several planned projects have been temporarily delayed due to supply-chain issues and project cost inflation as the U.S. economy continues to recover. For the time being, projects in planning must adjust to the economic realities of high feedstock and construction costs in order to justify their continued development.

California confirmed that its ban of organic waste from landfills will go into effect in 2022, following a 5-year phase-in that began in 2016. By 2025, California’s goal is to reduce landfilled organic waste by 75% of 2014 levels. The organic ban should drive more organic waste to recycling facilities for the production of renewable fuels. Connecticut, Massachusetts, New York, Rhode Island, and Vermont have similar organic bans in place.

Maine and Oregon enacted Extended Producer Responsibility (ERP) laws. These EPR laws aim to reduce single-use plastics, and require manufacturers to support the recycling of their products and incorporate more recycled content into their products. A similar EPR effort is underway at the federal level with the U.S. House of Representatives. As these EPR laws extend to other states, as expected, they should provide strong foundational support for new recycling projects.

Social impact

Senior Living

In the fourth quarter of 2021, the senior living industry continued its upward trajectory of occupancy increases after having established a “bottom” in occupancy deterioration in the beginning of the second quarter. Statistically, nationwide occupancy for independent living and assisted living increased to 83.6% and 78.3%, respectively. Occupancy has increased 3.2% for independent and 4.2% for assisted living since the first quarter 2021.³ Moreover, Q3 absorption was the highest recorded and more than 4 times the pace of absorption pre-pandemic. While there’s clearly ground to cover, it’s revitalizing to see the industry making strides to get back to pre-pandemic levels.

Just as operations have picked up, construction starts have continued to slow. Nationally, the percentage of newly constructed independent and assisted living units as a percentage of existing inventory was just 1.9% and 3.0%, respectively, at the end of the fourth quarter 2021. In December 2019, pre-COVID-19, the number of units under construction as a percentage of inventory was 7.3% which was down from an all-time high of 10% in late 2017.³ Clearly this trend suggests less supply pressure on occupancy in the months ahead.

In June 2021, the University of Chicago and the National Investment Center for Seniors Housing & Care (NIC) released a study which examined COVID -19’s impact on senior housing in 2020. Two main takeaways from the study were; (1) lower acuity settings saw dramatically lower rates of COVID -19 related deaths and (2) continuing care retirement communities (CCRCs) had half the COVID -19 mortality rates by comparison to non-CCRCs. Statistically, 67% of independent living, 64% of assisted living and 61% of memory care saw no COVID -19 related deaths, which is staggering given the doomsday headlines of 2020.³

Finally, in late September, the U.S. Department of Health and Human Services (HHS) released another $25.5B in Provider Relief Funds (PRF) aimed at reimbursing the senior living industry for lost revenues and increased expenses related to the pandemic. This is a timely “shot in the arm” for an industry that hasn’t seen additional stimulus since the last HHS PRF funding of $14B back in December 2020.

(unaudited)

2021 Annual Report | November 30, 2021

With the combination of occupancy on the rise and timely federal stimulus, we remain confident in the senior living industry’s ability to rebound and prepare for the upcoming “Silver Tsunami” as the oldest baby boomer turns 76 years old this year.

Education

For 2021, the public bond market for new issuance of K-12 charter school and high-yield private school revenue bonds exceeded $5.38 billion, a 28.4% increase over the previous year. Driving this was both the growth of new charter schools in need of facilities and record low yields for refinancing. While the Federal Reserve has been very direct about its intention to raise interest rates in the coming year, the average yield for all K-12 charter school & private school bond issuance in 2021 was below 3.8% with an average maturity exceeding 32 years.⁴

Over the year, state required remote-learning mandates offered parents a first-hand look into the curriculum and instruction their children received. This, along with well-documented “learning losses,” high-profile clashes between districts and teacher unions, and the open conflicts between parents and school board members has driven public scrutiny of K-12 education to a level not seen in decades. As a result, from the Fall 2019 to the Fall 2020 school years, US public school enrollment fell by more than 1.4 million, its largest decrease in at least two decades. Nationally, the percentage of students “homeschooling” more than doubled, and K-12 private and parochial schools have reported an influx of new attendees. Within public education, a very bright spot has been charter schools, where enrollment grew by 7% - an overall increase of 237,000 students.⁵

The pandemic has exposed long-simmering frustrations with K-12 public education experienced by families across the nation. Tensions continue to rise as clashes between teachers unions and many large school districts threaten to prevent an orderly return to the classroom to start the new year. Evidence shows “the pandemic has negatively affected academic growth, widening pre-existing disparities,”⁶ driving parental demand for a greater say in the education of their children. As ever-increasing numbers of families consider K-12 charter and private school options, demand for high-quality school facilities requiring sustainable financial solutions should continue to grow.

Concluding thoughts

We are extremely optimistic about our essential asset investments for 2022 and well into the future. It appears that the end may be in sight on the global pandemic, which will support increased pent-up demand for the assets in which the funds invest. We expect both senior living facilities and charter schools to continue to recover as we return to normalcy. There are indications of global acceptance that natural gas should be included as a sustainable energy source along with renewables and an investment option as energy transitions. We believe that all of these catalysts will lead to strong returns. We are positioning the funds to take advantage of this momentum and have a positive outlook for 2021 and beyond.

The S&P Energy Select Sector^® Index is a capitalization-weighted index of S&P 500^® Index companies in the energy sector involved in the development or production of energy products. The Tortoise North American Pipeline Index^SM is a float adjusted, capitalization-weighted index of energy pipeline companies domiciled in the United States and Canada. The Tortoise MLP Index^® is a float-adjusted, capitalization-weighted index of energy master limited partnerships.

The Tortoise indices are the exclusive property of Tortoise Index Solutions, LLC, which has contracted with S&P Opco, LLC (a subsidiary of S&P Dow Jones Indices LLC) to calculate and maintain the Tortoise MLP Index^® and Tortoise North American Pipeline Index^SM (the “Indices”). The Indices are not sponsored by S&P Dow Jones Indices or its affiliates or its third party licensors (collectively, “S&P Dow Jones Indices LLC”). S&P Dow Jones Indices will not be liable for any errors or omission in calculating the Indices. “Calculated by S&P Dow Jones Indices” and its related stylized mark(s) are service marks of S&P Dow Jones Indices and have been licensed for use by Tortoise Index Solutions, LLC and its affiliates. S&P^® is a registered trademark of Standard & Poor’s Financial Services LLC (“SPFS”), and Dow Jones^® is a registered trademark of Dow Jones Trademark Holdings LLC (“Dow Jones”).

It is not possible to invest directly in an index.

Performance data quoted represent past performance; past performance does not guarantee future results. Like any other stock, total return and market value will fluctuate so that an investment, when sold, may be worth more or less than its original cost.

(unaudited)

Tortoise

Energy Infrastructure Corp. (TYG)

Fund description

Tortoise Energy Infrastructure Corp. (TYG) was introduced in 2004 and invests in energy infrastructure companies. The fund is positioned to benefit from growing energy demand and accelerated efforts to reduce global CO² emissions in energy production. Energy infrastructure companies generate, transport and distribute electricity, as well as process, store, distribute and market natural gas, natural gas liquids, refined products and crude oil.

Management’s discussion of fund performance

Midstream energy outperformed the S&P 500^® Index for the first time since 2016. 2021 was a story of consistency for energy infrastructure fundamentals. A pandemic recovery coupled with growing free cash flow and the return of capital to shareholders were the main drivers of returns. 2021 EBITDA expectations were consistently revised higher based on increasing pipeline volumes as the economy reopened. Companies stayed disciplined on capital expenditures and used excess cash flow to reduce debt with stock buybacks as a secondary and growing consideration. At year-end, seventeen midstream companies maintained active equity buyback programs totaling more than $2 billion in buybacks through the third quarter of 2021. In 2022, we expect return of capital to continue with capital expenditures declining and free cash flow returned to investors via buybacks and higher distributions. Finally, with balance sheets strengthened, the industry could see additional M&A as we saw in 2021 with E&Ps. Since the fund’s inception, it has paid out more than $146 per share in cumulative distributions to stockholders. The fund’s market-based and NAV-based returns (including the reinvestment of distributions) for the fiscal year were 50.3% and 39.3%¹, respectively. The Tortoise MLP Index^® returned 40.8% during the same period.

Unlike the fund return, index return is pre-expenses and taxes.

Performance data quoted represent past performance; past performance does not guarantee future results. Like any other stock, total return and market value will fluctuate so that an investment, when sold, may be worth more or less than its original cost. Portfolio composition is subject to change due to ongoing management of the fund. References to specific securities or sectors should not be construed as a recommendation by the fund or its adviser. See Schedule of Investments for portfolio weighting at the end of the fiscal quarter.

(unaudited)

2021 Annual Report | November 30, 2021

Value of $10,000 vs. Tortoise Energy Infrastructure Fund – Market (unaudited)
From November 30, 2011 through November 30, 2021

The chart assumes an initial investment of $10,000. Performance reflects waivers of fee and operating expenses in effect. In the absence of such waivers, total return would be reduced. Performance data quoted represents past performance and does not guarantee future results. Investment returns and principal value will fluctuate, and when sold, may be worth more or less than their original cost. Performance current to the most recent month-end may be lower or higher than the performance quoted and can be obtained by calling 866-362-9331. Performance assumes the reinvestment of capital gains and income distributions. The performance does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

Fund structure and distribution policy

The fund is structured as a corporation and is subject to federal and state income tax on its taxable income. The fund has adopted a managed distribution policy (“MDP”). Annual distribution amounts are expected to fall in the range of 7% to 10% of the average week-ending net asset value (“NAV”) per share for the prior fiscal semi-annual period. Distribution amounts will be reset both up and down to provide a consistent return on trailing NAV. Under the MDP, distribution amounts will normally be reset in February and August, with no changes in distribution amounts in May and November.

Leverage

The fund’s leverage utilization decreased $16.7 million during the six months ended Q4 2021, compared to the six months ended Q2 2021, and represented 23.6% of total assets at November 30, 2021. At year-end, the fund was in compliance with applicable coverage ratios, 85.8% of the leverage cost was fixed, the weighted-average maturity was 2.3 years and the weighted-average annual rate on leverage was 3.56%. These rates will vary in the future as a result of changing floating rates, utilization of the fund’s credit facility and as leverage and swaps mature or are redeemed. During the fiscal year ended November 2021, $4.0 million of Senior Notes were paid in full upon maturity.

Income taxes

As of November 30, 2021, the fund’s deferred tax asset was zero. The fund had capital loss carryforwards of $276.5 million for federal income tax purposes (as restated, Note 15), which can be used to offset future capital gains. To the extent that the fund has taxable income, it will owe federal and state income taxes. Tax payments can be funded from investment earnings, fund assets, or borrowings.

Please see the Financial Statements and Notes to Financial Statements for additional detail regarding critical accounting policies, results of operations, leverage, taxes and other important fund information.

For further information regarding the tax impact on distributions, please visit www.tortoiseecofin.com.

(unaudited)

2021 Annual Report | November 30, 2021

Tortoise

Midstream Energy Fund, Inc. (NTG)

Fund description

The Tortoise Midstream Energy Fund (NTG) invests primarily in midstream energy entities. NTG primarily focuses on natural gas infrastructure companies that are actively participating in the energy evolution including exporting low carbon gas and propane to allow developing markets to reduce their dependence on coal, transporting renewable natural gas and renewable diesel, and integrating renewable power into operations.

Management’s discussion of fund performance

Midstream energy outperformed the S&P 500^® Index for the first time since 2016. 2021 was a story of consistency for energy infrastructure fundamentals. A pandemic recovery coupled with growing free cash flow and the return of capital to shareholders were the main drivers of returns. 2021 EBITDA expectations were consistently revised higher based on increasing pipeline volumes as the economy reopened. Companies stayed disciplined on capital expenditures and used excess cash flow to reduce debt with stock buybacks as a secondary and growing consideration. At year-end, seventeen midstream companies maintained active equity buyback programs totaling more than $2 billion in buybacks through the third quarter of 2021. In 2022, we expect return of capital to continue with capital expenditures declining and free cash flow returned to investors via buybacks and higher distributions. Finally, with balance sheets strengthened, the industry could see additional M&A as we saw in 2021 with E&Ps. The fund’s market-based and NAV-based returns (including the reinvestment of distributions) for the fiscal year were 64.9% and 47.4%¹, respectively. The Tortoise MLP Index^® returned 40.8% during the same period.

Unlike the fund return, index return is pre-expenses and taxes.

Performance data quoted represent past performance; past performance does not guarantee future results. Like any other stock, total return and market value will fluctuate so that an investment, when sold, may be worth more or less than its original cost. Portfolio composition is subject to change due to ongoing management of the fund. References to specific securities or sectors should not be construed as a recommendation by the fund or its adviser. See Schedule of Investments for portfolio weighting at the end of the fiscal quarter.

(unaudited)

Tortoise

Midstream Energy Fund, Inc. (NTG) (continued)

Value of $10,000 vs. Tortoise Midstream Energy Fund – Market (unaudited)
From November 30, 2011 through November 30, 2021

The chart assumes an initial investment of $10,000. Performance reflects waivers of fee and operating expenses in effect. In the absence of such waivers, total return would be reduced. Performance data quoted represents past performance and does not guarantee future results. Investment returns and principal value will fluctuate, and when sold, may be worth more or less than their original cost. Performance current to the most recent month-end may be lower or higher than the performance quoted and can be obtained by calling 866-362-9331. Performance assumes the reinvestment of capital gains and income distributions. The performance does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

Fund structure and distribution policy

The fund is structured as a corporation and is subject to federal and state income tax on its taxable income. The fund has adopted a managed distribution policy (“MDP”). Annual distribution amounts are expected to fall in the range of 7% to 10% of the average week-ending net asset value (“NAV”) per share for the prior fiscal semi-annual period. Distribution amounts will be reset both up and down to provide a consistent return on trailing NAV. Under the MDP, distribution amounts will normally be reset in February and August, with no changes in distribution amounts in May and November.

Leverage

The fund’s leverage utilization decreased approximately $11.6 million during the six months ended Q4 2021, compared to the six months ended Q2 2021, and represented 21.6% of total assets at November 30, 2021. At year-end, the fund was in compliance with applicable coverage ratios, 32.1% of the leverage cost was fixed, the weighted-average maturity was 2.0 years and the weighted-average annual rate on leverage was 2.20%. These rates will vary in the future as a result of changing floating rates, utilization of the fund’s credit facility and as leverage matures or is redeemed. During the fiscal year ended November 2021, $8.2 million of Senior Notes and $0.5 million of preferred stock were paid in full upon maturity.

Income taxes

As of November 30, 2021, the fund’s deferred tax asset was zero. The fund had capital loss carryforwards of $507.0 million for federal income tax purposes (as restated, Note 15), which can be used to offset future capital gains. To the extent that the fund has taxable income, it will owe federal and state income taxes. Tax payments can be funded from investment earnings, fund assets, or borrowings.

Please see the Financial Statements and Notes to Financial Statements for additional detail regarding critical accounting policies, results of operations, leverage, taxes and other important fund information.

For further information regarding the tax impact on distributions, please visit www.tortoiseecofin.com.

(unaudited)

Tortoise

Pipeline & Energy Fund, Inc. (TTP)

Fund description

The Tortoise Pipeline & Energy Fund is a closed-end fund that focuses particularly on the broader North American pipeline universe. TTP invests primarily in equity securities of pipeline companies that transport natural gas, natural gas liquids (NGLs), crude oil and refined products and, to a lesser extent, in other energy infrastructure companies.

Management’s discussion of fund performance

Midstream energy outperformed the S&P 500^® Index for the first time since 2016. 2021 was a story of consistency for energy infrastructure fundamentals. A pandemic recovery coupled with growing free cash flow and the return of capital to shareholders were the main drivers of returns. 2021 EBITDA expectations were consistently revised higher based on increasing pipeline volumes as the economy reopened. Companies stayed disciplined on capital expenditures and used excess cash flow to reduce debt with stock buybacks as a secondary and growing consideration. At year-end, seventeen midstream companies maintained active equity buyback programs totaling more than $2 billion in buybacks through the third quarter of 2021. In 2022, we expect return of capital to continue with capital expenditures declining and free cash flow returned to investors via buybacks and higher distributions. Finally, with balance sheets strengthened, the industry could see additional M&A as we saw in 2021 with E&Ps. The fund’s market-based and NAV-based returns (including the reinvestment of distributions) for the fiscal year were 60.1% and 45.5%, respectively. The Tortoise North American Pipeline Index^SM returned 31.1% for the same period.

Please refer to the inside front cover of the report for important information about the fund’s distribution policy.

The fund utilizes a covered call strategy when appropriate, which seeks to generate income while reducing overall volatility. No covered calls were written during the fiscal year.

Unlike the fund return, index return is pre-expenses.

Performance data quoted represent past performance; past performance does not guarantee future results. Like any other stock, total return and market value will fluctuate so that an investment, when sold, may be worth more or less than its original cost. Portfolio composition is subject to change due to ongoing management of the fund. References to specific securities or sectors should not be construed as a recommendation by the fund or its adviser. See Schedule of Investments for portfolio weighting at the end of the fiscal quarter.

(unaudited)

2021 Annual Report | November 30, 2021

Value of $10,000 vs. Tortoise Pipeline and Energy Fund – Market (unaudited)
From November 30, 2011 through November 30, 2021

The chart assumes an initial investment of $10,000. Performance reflects waivers of fee and operating expenses in effect. In the absence of such waivers, total return would be reduced. Performance data quoted represents past performance and does not guarantee future results. Investment returns and principal value will fluctuate, and when sold, may be worth more or less than their original cost. Performance current to the most recent month-end may be lower or higher than the performance quoted and can be obtained by calling 866-362-9331. Performance assumes the reinvestment of capital gains and income distributions. The performance does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

Fund structure and distribution policy

The fund is structured to qualify as a Regulated Investment Company (RIC) allowing it to pass-through to shareholders income and capital gains earned, thus avoiding double-taxation. To qualify as a RIC, the fund must meet specific income, diversification and distribution requirements. Regarding income, at least 90 percent of the fund’s gross income must be from dividends, interest and capital gains. The fund must meet quarterly diversification requirements including the requirement that at least 50 percent of the assets be in cash, cash equivalents or other securities with each single issuer of other securities not greater than 5 percent of total assets. No more than 25 percent of total assets can be invested in any one issuer other than government securities or other RIC’s. The fund must also distribute at least 90 percent of its investment company income. RIC’s are also subject to excise tax rules which require RIC’s to distribute approximately 98 percent of net income and net capital gains to avoid a 4 percent excise tax.

The fund has adopted a distribution policy which is included on the inside front cover of this report. To summarize, the fund has adopted a managed distribution policy (“MDP”). Annual distribution amounts are expected to fall in the range of 7% to 10% of the average week-ending net asset value (“NAV”) per share for the prior fiscal semi-annual period. Distribution amounts will be reset both up and down to provide a consistent return on trailing NAV. Under the MDP, distribution amounts will normally be reset in February and August, with no changes in distribution amounts in May and November. The fund may designate a portion of its distributions as capital gains and may also distribute additional capital gains in the last quarter of the year to meet annual excise distribution requirements. Distribution amounts are subject to change from time to time at the discretion of the Board.

Leverage

The fund’s leverage utilization decreased approximately $2.4 million during the six months ended Q4 2021, compared to the six months ended Q2 2021, and represented 22.4% of total assets at November 30, 2021. At year-end, the fund was in compliance with applicable coverage ratios, 55.4% of the leverage cost was fixed, the weighted-average maturity was 2.1 years and the weighted-average annual rate on leverage was 3.71%. These rates will vary in the future as a result of changing floating rates, utilization of the fund’s credit facility and as leverage matures or is redeemed.

Please see the Financial Statements and Notes to Financial Statements for additional detail regarding critical accounting policies, results of operations, leverage and other important fund information.

For further information regarding the tax impact on distributions, please visit www.tortoiseecofin.com.

(unaudited)

2021 Annual Report | November 30, 2021

Tortoise

Energy Independence Fund, Inc. (NDP)

Fund description

The Tortoise Energy Independence Fund is the first closed-end fund with a dedicated focus on North American crude oil and natural gas production, which supports energy independence through reduced reliance on foreign sources. NDP invests primarily in equity securities of upstream North American energy companies that engage in the exploration and production of crude oil, condensate, natural gas and natural gas liquids that generally have a significant presence in North American oil and gas fields, including shale reservoirs. While upstream investments may experience some price volatility, we believe that focusing on this portion of the value chain is the best way to access the heart of the North American oil and gas production growth opportunity.

Management’s discussion of fund performance

In North America, higher prices spurred a revival of shale drilling. The Permian, America’s biggest oil field, was the primary driver of production growth. In fact, during the fourth quarter, production within the basin reached an all-time high of almost 5.0 million barrels per day. The surge is driven by private operators, rather than the publicly traded companies that fueled the previous booms. For 2022, the Energy Information Agency (EIA) forecasts US production will increase from 11.8 million barrels per day (b/d), up from 11.2 million barrels per day (b/d) at the end of 2021. The fund’s market-based and NAV-based returns (including the reinvestment of distributions) for the fiscal year were 81.4% and 57.1%, respectively. The S&P 500 Energy Select Sector Index returned 55.5% for the same period.

The fund utilizes a covered call strategy when appropriate, which seeks to generate income while reducing overall volatility. No covered calls were written during the fiscal year.

Unlike the fund return, index return is pre-expenses.

Performance data quoted represent past performance: past performance does not guarantee future results. Like any other stock, total return and market value will fluctuate so that an investment, when sold, may be worth more or less than its original cost. Portfolio composition is subject to change due to ongoing management of the fund. References to specific securities or sectors should not be construed as a recommendation by the fund or its adviser. See Schedule of Investments for portfolio weighting at the end of the fiscal quarter.

(unaudited)  

Tortoise

Energy Independence Fund, Inc. (NDP) (continued)

Value of $10,000 vs. Tortoise Energy Independence Fund – Market (unaudited)
Since inception on July 26, 2012 through November 30, 2021

The chart assumes an initial investment of $10,000. Performance reflects waivers of fee and operating expenses in effect. In the absence of such waivers, total return would be reduced. Performance data quoted represents past performance and does not guarantee future results. Investment returns and principal value will fluctuate, and when sold, may be worth more or less than their original cost. Performance current to the most recent month-end may be lower or higher than the performance quoted and can be obtained by calling 866-362-9331. Performance assumes the reinvestment of capital gains and income distributions. The performance does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

Fund structure and distribution policy

The fund is structured to qualify as a Regulated Investment Company (RIC) allowing it to pass-through to shareholders income and capital gains earned, thus avoiding double-taxation. To qualify as a RIC, the fund must meet specific income, diversification and distribution requirements. Regarding income, at least 90 percent of the fund’s gross income must be from dividends, interest and capital gains. The fund must meet quarterly diversification requirements including the requirement that at least 50 percent of the assets be in cash, cash equivalents or other securities with each single issuer of other securities not greater than 5 percent of total assets. No more than 25 percent of total assets can be invested in any one issuer other than government securities or other RIC’s. The fund must also distribute at least 90 percent of its investment company income. RIC’s are also subject to excise tax rules which require RIC’s to distribute approximately 98 percent of net income and net capital gains to avoid a 4 percent excise tax.

The fund has adopted a managed distribution policy (“MDP”). Annual distribution amounts are expected to fall in the range of 7% to 10% of the average week-ending net asset value (“NAV”) per share for the prior fiscal semi-annual period. Distribution amounts will be reset both up and down to provide a consistent return on trailing NAV. Under the MDP, distribution amounts will normally be reset in February and August, with no changes in distribution amounts in May and November. The fund may designate a portion of its distributions as capital gains and may also distribute additional capital gains in the last quarter of the year to meet annual excise distribution requirements.

Leverage

The fund’s leverage utilization decreased $0.9 million during the six months ended Q4 2021, as compared to the six months ended Q2 2021. The fund utilizes all floating rate leverage that had an interest rate of 1.19% and represented 5.3% of total assets at year-end. During the period, the fund maintained compliance with its applicable coverage ratios. The interest rate on the fund’s leverage will vary in the future along with changing floating rates.

Please see the Financial Statements and Notes to Financial Statements for additional detail regarding critical accounting policies, results of operations, leverage and other important fund information.

For further information regarding the tax impact on distributions, please visit www.tortoiseecofin.com.

(unaudited)

Tortoise

Power and Energy Infrastructure Fund, Inc. (TPZ)

Fund description

The Tortoise Power and Energy Infrastructure Fund is a closed-end fund that invests primarily in power and energy infrastructure companies. TPZ seeks to invest in fixed income and dividend-paying equity securities of power and energy infrastructure companies that provide stable and defensive characteristics throughout economic cycles.

Management’s discussion of fund performance

Midstream energy outperformed the S&P 500^® Index for the first time since 2016. 2021 was a story of consistency for energy infrastructure fundamentals. A pandemic recovery coupled with growing free cash flow and the return of capital to shareholders were the main drivers of returns. 2021 EBITDA expectations were consistently revised higher based on increasing pipeline volumes as the economy reopened. Companies stayed disciplined on capital expenditures and used excess cash flow to reduce debt with stock buybacks as a secondary and growing consideration. At year-end, seventeen midstream companies maintained active equity buyback programs totaling more than $2 billion in buybacks through the third quarter of 2021. In 2022, we expect return of capital to continue with capital expenditures declining and free cash flow returned to investors via buybacks and higher distributions. Finally, with balance sheets strengthened, the industry could see additional M&A as we saw in 2021 with E&Ps. The fund’s market-based and NAV-based returns (including the reinvestment of distributions) for the fiscal year were 36.0% and 21.0%, respectively. Comparatively, the TPZ Benchmark Composite* returned 11.3% for the same period. The fund’s equity holdings outperformed its fixed income holdings for the fiscal year on a total return basis.