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Weatherford International Inc., a contractor based in Switzerland, also agreed in June to pay $75 million to the trust fund to settle claims between it and BP. Weatherford manufactured the float collar, designed to help contain cement, used in the blown-out well.

U.S. regulators last week cited BP PLC, Transocean Lld. and Halliburton for alleged safety and environmental violations stemming from last year’s rig explosion and massive Gulf oil spill.

The companies were given 60 days to appeal the citations issued by the U.S. Interior Department’s Bureau of Safety and Environmental Enforcement.

A report issued last month by the panel of government investigators laid ultimate responsibility on BP for the disaster, which spewed roughly 200 million gallons (750 million liters) of oil into the Gulf.

BP ignored crucial warnings and made bad decisions during the cementing of the well, but Transocean and Halliburton shared some of the blame, the report concluded.

In its asset disposal program, BP has announced at least 15 sales including:

• Its 60 percent stake in Argentina-based oil and gas producer Pan American Energy to Bridas Corp. of Argentina for $7 billion.

• A bundle of onshore gas assets to Apache Corp. for $7.1 billion.

• Its oil and gas exploration business in Colombia for $1.9 billion to Ecopetrol of Colombia and Talisman of Canada.

• Energy assets in Venezuela and Vietnam to its Russian joint venture TNK-BP for $1.8 billion.

AP writer Meera Selva in London contributed to this report