OPERATORS · TEXAS · P-5 NUMBER 706407

Riata Energy, Inc.

615 FILINGS · 538 PERMITS · PAGE 2 OF 13 · BY ISSUE DATE

IssuedPermitTypeCountyLease / wellDepthStatusAPIOperator change
Jun 23, 2006621261DrillPecosWest Ranch #60209,000Spudded37137753Now Longfellow Energy LP
Jun 23, 2006621261AmendmentDrillPecosWest Ranch #602010,000Final completion37137753Now Longfellow Energy LP
Jun 21, 2006621163DrillPecosWest Ranch #33108,500Final completion37137747Now Longfellow Energy LP
Jun 15, 2006620509DrillPecosMooers Estate #33,500Final completion37137743Now Last Mile Production LLC
Jun 8, 2006620552DrillPecosWest Ranch #60335,200Final completion37137745Now Longfellow Energy LP
Jun 5, 2006619424DrillPecosWest Ranch #60325,200Spudded37137739Now Longfellow Energy LP
May 16, 2006619350DrillPecosLongfellow 600 -MD- #8029,000Final completion37137735Now Longfellow Energy LP
May 16, 2006618974DrillPecosWest Ranch #26069,000Final completion37137734Now Longfellow Energy LP
May 15, 2006618901DrillPecosWest Ranch #28058,500Final completion37137733Now Longfellow Energy LP
May 12, 2006618712DrillPecosWest Ranch #50485,000Final completion37137731Now Longfellow Energy LP
May 11, 2006618688DrillPecosWest Ranch #50475,000Final completion37137730Now Longfellow Energy LP
May 11, 2006618626DrillPecosWest Ranch #50377,000Final completion37137729Now Longfellow Energy LP
May 11, 2006618616DrillPecosWest Ranch #502310,000Final completion37137728Now Longfellow Energy LP
May 11, 2006618609DrillPecosWilliams #5019,200—37137727—
May 4, 2006618422DrillPecosWest Ranch #32078,500Spudded37137726Now Longfellow Energy LP
May 2, 2006618179DrillPecosWest Ranch #32128,500Final completion37137723Now Longfellow Energy LP
May 2, 2006618128DrillPecosWest Ranch #50437,000Final completion37137722Now Longfellow Energy LP
Apr 20, 2006617631DrillPecosAllison #21135,200Final completion37137717Now Longfellow Energy LP
Apr 17, 2006617300DrillPecosWest Ranch #60305,200Final completion37137710Now Longfellow Energy LP
Apr 7, 2006617217DrillPecosNorth Pinon #28049,000Final completion37137708Now Longfellow Energy LP
Apr 7, 2006617216DrillPecosWest Ranch #34069,000Final completion37137707Now Longfellow Energy LP
Apr 6, 2006617142DrillPecosLongfellow 600 -3- #117,000Spudded37137704Now Longfellow Energy LP
Apr 5, 2006616982DrillPecosWest Ranch #50408,900Spudded37137700Now Longfellow Energy LP
Mar 29, 2006616649DrillPecosLongfellow State -139- #36019,000Final completion37137699Now Longfellow Energy LP
Mar 23, 2006616315DrillPecosWest Ranch #50269,500Spudded37137694Now Longfellow Energy LP
Mar 9, 2006615504DrillPecosWest Ranch #50355,500Final completion37137691Now Longfellow Energy LP
Mar 8, 2006615092DrillPecosLongfellow -108- #12048,500Spudded37137687Now Longfellow Energy LP
Mar 8, 2006615092AmendmentDrillPecosLongfellow -108- #12048,999Final completion37137687Now Longfellow Energy LP
Mar 8, 2006615089DrillPecosWest Ranch #27029,000Final completion37137686Now Longfellow Energy LP
Mar 8, 2006615088DrillPecosWest Ranch #33069,000Final completion37137685Now Longfellow Energy LP
Mar 8, 2006615087DrillPecosWest Ranch #33049,200Final completion37137684Now Longfellow Energy LP
Mar 8, 2006615085DrillPecosWest Ranch South #69019,000Plugged dry hole (P&A)37137683—
Mar 6, 2006615282DrillPecosWest Ranch #60285,500Final completion37137688Now Longfellow Energy LP
Mar 2, 2006615050DrillPecosLongfellow #40376,700Spudded37137681Now Longfellow Energy LP
Mar 2, 2006614873DrillPecosAllison #21115,500Final completion37137680Now Longfellow Energy LP
Feb 24, 2006614835DrillPecosWest Ranch #50345,200Final completion37137678Now Longfellow Energy LP
Feb 17, 2006614442DrillPecosWest Ranch #30028,000Final completion37137672Now Longfellow Energy LP
Feb 15, 2006612872DrillPecosWest Ranch #7039,000Final completion37137665Now Sandridge Expl. and Prod. LLC
Feb 14, 2006613780DrillPecosWest Ranch #50317,000Final completion37137671Now Longfellow Energy LP
Feb 10, 2006612867ReenterPecosWest Ranch #29017,500Plugged dry hole (P&A)37136690Now Fina Oil & Chemical Company
Feb 9, 2006613826DrillPecosWest Ranch #3501A9,000Plugged dry hole (P&A)37137670—
Jan 30, 2006612878DrillPecosAllison #21125,500Final completion37137667Now Longfellow Energy LP
Jan 27, 2006612869DrillPecosWest Ranch #50259,500Spudded37137666Now Longfellow Energy LP
Jan 27, 2006612869AmendmentDrillPecosWest Ranch #50259,500Spudded37137666Now Longfellow Energy LP
Jan 23, 2006612672DrillPecosWest Ranch #70210,000Final completion37137661Now Longfellow Energy LP
Jan 19, 2006610617DrillPecosWest Ranch #35019,000Spudded37137650—
Jan 5, 2006611866RecompletionGainesGeorge Allen Unit #22W6,000Final completion16535272Now Capturepoint LLC
Dec 29, 2005611712DrillPecosWest Ranch South #51036,000Plugged dry hole (P&A)37137660—
Dec 9, 2005610620DrillPecosWest Ranch #50335,500Final completion37137653Now Longfellow Energy LP
Dec 9, 2005610618DrillPecosWest Ranch #50325,500Final completion37137654Now Longfellow Energy LP