Jack J. Langlois leads DLA Piper's US Energy practice in Houston. He has served as lead counsel representing governments, public and private companies, lenders and private equity investors in a number of substantial domestic and international corporate transactions.

Mr. Langlois has significant experience in mergers, acquisitions and dispositions of assets and stock of energy companies, acquisitions of exploration rights from sovereigns, joint ventures and investments in and financings of energy projects, including mineral exploration and development projects, production sharing agreements, concessions, licenses, pipelines, refineries, power plants and drilling rigs. His clients include leaders in the energy industry.

The respected English research firm Chambers & Partners has repeatedly cited him in Chambers USA: America's Leading Lawyers for Business, calling him a "tremendously skilled attorney" and noting that he is "a well-known name in international and domestic oil & gas" and that his "reputation in high-profile energy M&A and project development is esteemed throughout the market." Chambers also comments, "Clients are especially complimentary about Langlois’ commercial focus."

Recent Transactions

• A domestic oil and gas company with more than 2.6 trillion cfe of natural gas reserves in the $540 million sale of its oil, natural gas and coal-bed methane assets in two states to a pair of publicly traded purchasers;
• A private equity fund in connection with various structured, preferred return investments up to $65 million each in domestic oil and gas assets, including the engagement of management teams to operate the assets;
• An energy services company in the proposed sale of substantially all of its assets in various eastern states to a public company;
• A distressed-investment private equity fund in connection with the consideration, structuring and negotiation of potential investments in the debt or equity of public oil and gas companies; 
• A privately held exploration and production company with subsidiary operations in Peru in the $1 billion sale of the company to a consortium of foreign national oil companies;
• Oasis Petroleum Management LLC’s management team in connection with the IPO for the company
• Several portfolio companies of energy private equity fund in the acquisition of oil and gas properties in Texas, Louisiana, Oklahoma and other states;
  Several portfolio companies of energy private equity fund in the sale of oil and gas properties in Texas;
• Private domestic exploration companies in farmouts, exploration agreements, joint ventures, joint seismic survey, drilling contracts and other ventures affecting oil and gas properties in the continental US;
• Management teams in various private equity investments in domestic and international oil and gas assets with EnCap, Quantum and Jefferies funds.
• Domestic exploration and production companies in obtaining borrowing base revolving credit facilities.
• Leor Energy in its sale of US oil and gas leases in Texas to EnCana USA.
• Private equity fund in connection with hydrocarbon exploration joint venture in Texas.
• Oasis Petroleum North America LLC in connection with the acquisition of producing properties in Midwest and financing of acquisition.
• Kayne Anderson in various private investments in domestic oil and gas assets.
• Private company in negotiating Mineral Development Agreement with Native American Indian Tribe and joint venture with independent energy company for field exploration and development.
• Cavallo Energy in its sale of Texas oil and gas leases to Linn Energy.
• Latin American client in sale of its drilling rig and service business to US public company.
• LUKOIL in joint venture with ConocoPhillips to develop licenses in Russia.
• A Spanish company in connection with the acquisition of a power project and associated LNG facilities in Puerto Rico from Enron bankruptcy estate.
• A Canadian company in connection with the negotiation of the acquisition of several interstate natural gas pipelines from Enron Bankruptcy estate.
• A US soda ash mining company and a special committee of the board of directors in its merger with a foreign owned purchaser.
• An Indian exploration and production company in connection with its acquisition of and financing related to PSA interest in the Sakhalin field and in other bids to acquire petroleum assets internationally.
• An energy company in connection with the acquisition and subsequent disposition of pipeline, gathering systems and other midstream assets in Texas.
• Various equity funds and oil and gas production companies in connection with the acquisition of oil and gas properties and power assets from bankruptcy estates and development of the properties.
• State oil companies and Western and Russian companies in connection with negotiations for development of Caspian Sea oil fields.
• Drilling companies in connection with sales of drilling rigs in Brazil, Canada, and Greece.
• Power producers in connection with the development and financing of power projects in Latin America.
• Banks in connection with production payment acquisition and financing.
• Independent oil companies in the sale of overriding royalty interests to qualified investment buyers.
• A Western company to negotiate concession of national trunklines in Kazakhstan.
• Various clients with respect to participation in various CIS privatizations.
• Various clients with respect to the acquisition of timber.