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Vinson & Elkins advised Blackstone Infrastructure Partners in its entry into an agreement to purchase up to $1.1 billion of equity interests in Tallgrass Energy, LP from affiliates of Enagas, S.A., representing an approximate 30.2% ownership interest in Tallgrass.

Vinson & Elkins advised Solaris Oilfield Infrastructure, Inc., an energy infrastructure company providing oilfield products, services, and infrastructure solutions, in its acquisition of Mobile Energy Rentals LLC, a supplier of mobile power source equipment including generators, transformers, and power distribution systems for electric companies and electric cooperatives.

Vinson & Elkins advised Elevation Midstream, LLC (“Elevation”), an energy midstream gathering and processing company based in Denver, Colorado, in its combination with Platte River Holdings (“Platte River”), a subsidiary of ARB Midstream, LLC (“ARB”).

Vinson & Elkins advised Grayson Mill Holdings II, LLC and Grayson Mill Holdings III, LLC (together, “GM”), both private companies backed by EnCap Investments L.P. (“EnCap”), in GM’s sale to WPX Energy Williston, LLC, an affiliate of Devon Energy Corporation (“Devon”), of certain entities affiliated with GM holding oil and gas properties, rights and related assets located in the Williston and Powder River Basins for an unadjusted purchase price of $5.0 billion, subject to customary purchase price adjustments.

Vinson & Elkins advised XCL Resources, LLC (“XCL”), a private company backed by EnCap Investments L.P. (“EnCap”) and Rice Investment Group (“Rice”), in its sale to SM Energy (the “Company”) of Uinta Basin oil and gas assets owned by certain entities affiliated with XCL for an unadjusted purchase price of $2.55 billion.

Vinson & Elkins advised Kimmeridge Energy Management Company on the acquisition of Commonwealth LNG, a project company developing an LNG liquefaction and export facility near Cameron, Louisiana.

Vinson & Elkins advised Tallgrass Energy, LP (“TGE”) in the acquisition of Phillips 66’s 25% interest in the Rockies Express Pipeline (“REX”) for an enterprise value of approximately $1.275 billion.

Vinson & Elkins Represented EnCap Investments L.P. (“EnCap”) in connection with the entry by its portfolio company, Ameredev II Parent, LLC (Ameredev), into a definitive agreement with a wholly-owned subsidiary of Matador Resources Company (NYSE: MTDR) (“Matador” or the “Company”) pursuant to which Matador’s subsidiary will acquire a subsidiary of Ameredev, including certain oil and natural gas producing properties and undeveloped acreage located in Lea County, New Mexico and Loving and Winkler Counties, Texas (the “Ameredev Acquisition”).

Vinson & Elkins advised Mercuria, one of the world’s largest independent energy and commodities groups, in its investment in Black Bayou Energy Hub LLC (Black Bayou), an underground salt dome energy storage company based in Lafayette, Louisiana.

Vinson & Elkins advised ProPetro Holding Corp. (“ProPetro”), an oilfield services company providing completions services to upstream oil and gas companies, in its acquisition of Aqua Prop LLC (“Aqua Prop”), an innovative provider of cost-effective wet sand solutions, catering to the needs of the oil and natural gas industry.

Vinson & Elkins advised Waste Management, Inc. (“Waste Management”) in connection with the entry by Waste Management into a definitive agreement with Stericycle, Inc. (“Stericycle”) pursuant to which a subsidiary of Waste Management will acquire all outstanding shares of Stericycle for $62.00 per share in cash, representing a total enterprise value of approximately $7.2 billion when including approximately $1.4 billion of Stericycle’s net debt.

Vinson & Elkins advised an affiliate of Energy Transfer LP (“Energy Transfer”) in the negotiation and execution of a definitive agreement pursuant to which Energy Transfer will acquire WTG Midstream Holdings LLC in a transaction valued at approximately $3.25 billion from affiliates of Stonepeak, the Davis Estate and Diamondback Energy, Inc.