SEC | Upstream

Gulfport in contract spat with Mammoth

Embattled Alta Mesa gets $310m bid

Weatherford logs $821m loss

US SEC obtains asset freeze over Anadarko trading

Emerge Energy Services in restructuring deal

Ring Energy faces investor threat

Texas 'Frack Master' faces 12 years in prison

Gulf Island sues Hornbeck over canned contracts

US hits Petrobras with $835m fine

EnVen files draft IPO plan

KBR settles securities charges

Ex-Penn West execs must face fraud charges

Pressure mounts for new Publish What You Pay rule

Shell, Eni make OPL 245 filings in US

Texas oil execs charged with fraud