NEW YORK (MarketWatch) -- Officials at the U.S. government's lead agency for inspecting safety conditions at offshore oil platfoms took sport tickets, lunches, and other gifts from enegy companies and used government computers to look at pornography, according to reports Tuesday citing a probe by the Interior Department's inspector general. The report has not been made public by the inspector general but was described Tuesday in an email from U.S. Interior Secretary Ken Salazar to The Wall Street Journal and The New York Times. The report cited violations of federal regulations and agency ethics rules by members of the Minerals Management Service at the Lake Charles, La., office. The release came ahead of Salazar's appearance at Congressional hearings this week, when he's expected to lay out his plan to restructure the agency in reaction to the April 20 explosion of the Deepwater Horizon oil rig that killed 11 workers and resulted in a still uncontrolled oil leak in the Gulf of Mexico.