From Oil and Gas Journal:

“EPA believes that Halliburton’s response is inadequate and inconsistent with the cooperation shown to date by the eight other companies,” he continued. “Since Halliburton appears not to be committed to providing all the requested information on an expeditious schedule, EPA therefore is ordering the submission of the information outlined in the enclosed subpoena and information request, pursuant to the authorities cited therein.”

Full feature at this link:

http://www.ogj.com/index/article-display/0118776033/articles/oil-ga...