Ingriselli began his career at Texaco in 1979 and held various key executive positions with Texaco throughout the following two decades. From 1979 until 1983, Ingriselli led Texaco’s negotiation with China for its first successful international oil Production Sharing Contract. Under Ingriselli’s leadership, Texaco discovered Block 16/08 (HZ/21-1 oil field) in the Pearl River Mouth Basin in the South China Sea. The contract today is still producing about 80,000 bopd for the citizens of China, generating substantial revenue for China National Offshore Oil Corp (CNOOC) and Chevron.
By the early 1980s, Ingriselli led the historic signing of China's first successful international oil contract Between Texaco and the Chinese government.
In 1992, Ingriselli was named President of Texaco International Operations Inc., a capacity that directed Texaco’s global initiatives in exploration and development. In 1996, he was appointed President and CEO of the Timan Pechora Company, a Houston-headquartered company owned by affiliates of Texaco, Exxon, Amoco, Norsk Hydro, and Lukoil, which was developing one of the largest international investments in Russia at that time.
Six years later Ingriselli returned to Texaco’s Executive Department with responsibilities for Texaco’s power and gas operations, merger and acquisition activities, pipeline operations and corporate development. In 2000 Ingriselli was appointed President of Texaco Technology Ventures, responsible for all of Texaco’s global technology initiatives and investments. In 2001, Ingriselli retired from Texaco after its merger with Chevron and four years later, with a group of Texaco alumni, Ingriselli founded Pacific Asia Petroleum, Inc. (NYSE:PAP), a New York-based energy company with operations in China.
PAP's board members included the late Robert Stampel, former Chairman and CEO of General Motor; James Link, Former Treasurer of Texaco; and Elizabeith Smith, Former VP of Investor Relations and Chief Compliance Officer of Texaco.
In 2010, Pacific Asia Petroleum expanded outside the Pacific Rim into West Africa by acquiring an interest in a Production Sharing Contract in offshore Nigeria. Upon conclusion of this acquisition, the company changed its name from "Pacific Asia Petroleum, Inc." to "CAMAC Energy Inc.", (NYSE:CAK), which later became Erin Energy Inc. (NYSE MKT: ERN)
In 2011, Ingriselli founded Pacific Energy Development (PEDEVCO Corp.), an energy company focused on acquisition and development of energy projects, including shale oil and gas assets, in the United States. Through global partnership, Pacific Energy Development executes its high growth and early cash flow strategy.
The company became public in 2012 (NYSE MKT: PED) and has operations in Colorado.
Ingriselli currently serves as the Chairman at Pacific Energy Development.
Ingriselli founded Blackhawk Energy Ventures in 2016. Blackhawk Energy draws from Ingriselli and his team's decades-long E&P experience, from off-shore deep water exploration, to the advanced drilling technologies that helped brought forth the Shale Revolution, to capitalize on the new opportunities presented in the next generation oil market.
The company focuses on identifying and acquiring under-valued oil assets and maximize their production and profit by utilizing stringent cost-effective, low-overhead operation programs and aims to bring bottom line profitability through operational efficiency and market responsiveness.