Hilcorp Energy Co., the privately held oil producer run by billionaire Jeff Hildebrand, will pay a $9.4 million civil penalty for failing to reduce emissions of methane and volatile gases in New ...
Hilcorp Energy Co.’s North Slope unit has been fined $223,868 for several violations of the federal law that governs the management of hazardous wastes, the Environmental Protection Agency said ...
EPA officials said Hilcorp North Slope — a subsidiary of Hilcorp Energy — failed to adhere to several provisions of the Resource Conservation and Recovery Act at its Prudhoe Bay oil field.