practices on BP's Atlantis PQ offshore platform in the Atlantis Oil Field. A whistleblower report to the MMS in March 2009 stated, "over 85 percent of the Atlantis Project's Piping and Instrument drawings lacked final engineer-approval," as legally required. The report further stated, "the project be immediately shut down until those documents could be accounted for and independently verified." BP and other oil industry groups wrote letters objecting to a proposed MMS rule last year that would have required stricter safety measures. The MMS changed rules in April 2008 to exempt certain projects in the central Gulf region, allowing BP to operate in the Macondo Prospect without filing a blowout plan. References External links BP Atlantis PQ diagram and images at FMC Technologies Atlantis - City On The Rise - Article about the Atlantis Oil Field Project (Date: April 14, 2005) Gulf of Mexico oil fields of the United States BHP BP oil and gas fields 2007 establishments in the United States