William (Bill) Parish Jr.

Partner, Houston



William "Bill" Parish, Jr. is a trusted advisor to clients on a wide range of complex US and cross-border mergers and acquisitions, private equity investments, partnerships and joint ventures, and general corporate matters. Bill has particular experience in energy transactions and cross-border transactions across Latin America.

Bill regularly represents acquirers, investors and target companies in buying and selling oil and gas properties, natural gas and crude oil pipelines, terminals, processing plants, gas storage facilities, oilfield service companies and power generation facilities.

Bill has represented clients in cross-border transactions across Latin America for more than twenty-five years, advising on mergers, acquisitions, joint ventures and commercial matters involving businesses, operations and assets in Latin America. He is fluent in Spanish.

He also counsels private equity funds and their portfolio companies with respect to investments ranging from portfolio company transactions, equity line investments and minority investments, as well as management compensation packages, corporate governance matters, add-on acquisitions, equity and debt financings, and dispositions. Additionally, he counsels borrowers in real estate and commercial financing transactions, including general corporate revolving and term loan facilities, acquisition finance, mezzanine facilities and asset-based loans.

Mr. Parish is a fellow of the Texas Bar Foundation, a group to which fewer than one-third of 1% of the members of the Texas Bar are granted admission.

Bars and Courts
New York State Bar
Texas State Bar
Georgetown University Law Center
University of Houston Law Center
The University of Texas at Austin


Represented electric commercial vehicle company VIA Motors International, Inc. on its acquisition (in an all-stock merger valued at up to US$630 million) by Ideanomics, Inc., a global company focused on driving the adoption of commercial electric vehicles and associated energy consumption.

Represented InterPrivate III, a publicly-traded special purpose acquisition company (SPAC), in a De-SPAC merger with Aspiration Partners, a global leader in Sustainability-as-a-Service solutions for consumers and companies, valued at US$2.3 billion.

Represented Arroyo Energy Investment Partners on its acquisition of Gasmar S.A from Empresas Gasco S.A. and Abastible S.A. (a wholly owned subsidiary of Empresas Copec S.A.). Gasmar S.A., a Chilean company, owns and operates the largest LPG terminal on the Pacific Coast of South America.

Represented Chevron in the sale of its stake in the Papa-Terra oil field offshore Brazil to Canadian energy company MTI. 

Represented Brazil maritime services provider OceanPact Serviços Marítimos S.A. on its acquisition of all the shares of UP Offshore (Uruguay) S.A. and its controlled companies, including 8 vessels used in deep-water oil production.

Represented IHS Holding Limited (IHS Towers), one of the largest independent owners, operators and developers of shared telecommunications infrastructure in the world by tower count, on its acquisition of Centennial Towers' Brazilian and Colombian tower operations.

Represented Siemens Financial Services (SFS), the financing arm of Siemens, in its investment in Brasol Participações e Empreendimentos S.A. (Brasol), a distributed solar generation company that provides Energy-as-a-Service (EaaS) solutions to businesses across Brazil. 

Represented Itron Inc. in the sale of its subsidiaries comprising its utilities metering manufacturing and sales operations in Mexico, Brazil, Chile and Argentina. Itron is a leading technology and service company which offers products, software and services that enable utilities and municipalities worldwide to operate their critical infrastructure.

Represented Colombian power company Celsia E.S.P. in the US$420 million sale of the Flores I and Flores IV gas-fired generation plants located in Barranquilla, Colombia, to US energy and infrastructure group Glenfarne.

Represented the selling shareholders of Brazilian soybean seed producer and retailer Tec Agro in the sale of the company to Canadian fertilizer company Nutrien, Ltd.

Represented of Occidental Petroleum Corporation in its US$825 million sale of onshore oil and gas assets in Colombia to The Carlyle Group.

Represented a global real estate private equity fund in the formation and negotiation of multiple joint ventures with Brazilian developers for the development, construction, sale and leasing of commercial and multifamily buildings throughout the city of São Paulo.

Represented Chevron in the sale of its interest in the Elk Hills Field, one of the most productive fields in the United States.*

Represented a midstream oil and gas company in the formation and negotiation of a joint venture with a U.S. private equity firm to pursue investments in the midstream energy sector in Mexico.*

Represented a Mexican midstream oil and gas company in public tenders for new natural gas transportation infrastructure in Mexico.*

Represented a coal producer in the formation and negotiation of a joint venture with EDF Trading for natural gas exploration and production the Marcellus Shale, and subsequent acquisition of EDF Trading’s 50% interest in the joint venture.*

Represented a global oil and gas company in its $2.4 billion acquisition of offshore oil and gas assets in Brazil.*

Represented a global oil and gas company in the $1.15 billion sale of its 50% share in the Texas-Oklahoma Seaway Crude Pipeline.*

Represented a global oil and gas company in its $355 million acquisition of Haynesville Shale assets.*

Represented a global oil and gas company in its $450 million acquisition of Haynesville Shale assets.*

Represented a global oil and gas company in its $600 million acquisition of Marcellus Shale assets from three portfolio companies of Encap Investments.*

*Matters completed prior to joining White & Case.

Awards and Recognition

Leading Lawyer in the United States for Private Equity, Euromoney Expert Guide, 2019, 2020, 2021

Recognized for Corporate/M&A in The Legal 500 Latin America, 2018, 2019

Recognized for Projects & Energy in The Legal 500 Latin America, 2018, 2019

Recognized for Energy – Transactions: Oil & Gas in The Legal 500 US, 2020