Edward P. Russell

Abraxas Petroleum Corp. engages in the acquisition, exploration, development, and production of crude oil and natural gas. It focuses primarily on the development of conventional and unconventional resources in its primary operating areas in the Rocky Mountains, South Texas, Powder River Basin, and Permian Basin. The company was founded by Robert L.G. Watson in 1977 and is headquartered in San Antonio, TX.

Tortoise Energy Infrastructure Corp. operates as a mutual fund closed-end investment trust. The company owns a portfolio of master limited partnership investments in the energy infrastructure sector. Its objective is to provide its stockholders a high level of total return with an emphasis on current distributions. The company was founded on October 29, 2003 and is headquartered in Leawood, KS.

Tortoise Capital Advisors LLC (TCA) is a SEC-registered investment advisor firm headquartered in Overland Park, Kansas. The firm was founded by Harold Birzer in 2002 and is a subsidiary of TortoiseEcofin Borrower LLC (formerly Tortoise Borrower LLC), ultimately held by TortoiseEcofin Investments LLC. TCA provides investment management services to individual and institutional investors and pooled investment vehicles.

Tortoise North American Energy Corp. is a non-diversified, closed-end management investment company. Its investment objective is to seek a high level of total return with an emphasis on distribution income paid to stockholders. The firm seeks to provide its stockholders with a vehicle to invest in a portfolio consisting primarily of publicly traded U.S. master limited partnerships, including oil and gas exploitation, energy infrastructure and energy shipping companies. The company was founded on January 13, 2005 and is headquartered in Leawood, KS.

Tortoise Gas & Oil Corp. provides investment and other financial related services. It provides services to private & public companies. The company is located in Leawood, KS.

Tortoise Power & Energy Infrastructure Fund, Inc. operates as a close-end investment company. The firm engages in the provision of current income, with an objective of capital appreciation. It intends 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. The company was founded on July 5, 2007 and is headquartered in Leawood, KS.

Tortoise Midstream Energy Fund, Inc. operates as a closed-end investment fund. The firm engages in the natural gas infrastructure master limited partnerships. It also owns and operates a network of pipeline and energy-related logistical infrastructure assets with an emphasis on those that transport, gather, process, and store natural gas and natural gas liquids. The company was founded on April 23, 2010 and is headquartered in Overland Park, KS.

Zenith Energy Logistics Partners LP engages in the ownership, operation, development, and acquisition of diversified portfolio of complementary energy logistics assets. It engages in the terminalling, storage, throughput and transloading of crude oil and petroleum products. The firm focuses on growing the business through the optimization, organic development and acquisition of terminalling, storage, rail, pipeline and other energy logistics assets. The company was founded in July 2013 and is headquartered in Houston, TX.