Hart Energy, based in Houston, publishes online newspapers and magazines covering the petroleum industry and provides related research and consulting services.

Phillips International acquired the company in 1991 and sold it in 2000 for over $100 million.

In March 2004, the company was acquired by management and changed its name to Hart Energy Publishing, LP.

[2] In October 2010, Hart Energy acquired Rextag Strategies Mapping & Data Services.

[3] On May 2, 2013, Hart Energy acquired Subsea Engineering News.