The OIG investigated allegations that Great Western Drilling Corporation (GWD) misreported mineral royalty data to the Office of Natural Resources Revenue (ONRR) and underpaid Federal mineral royalties.
We substantiated the allegations and found that for more than 6 years, the GWD violated Federal regulations and ONRR rules when they deducted their costs incurred transporting and processing natural gas and associated natural gas liquids into marketable condition from its royalty obligations to the ONRR.