OPERATORS · TEXAS · P-5 NUMBER 489781

Lavanco Energy, Inc.

40 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

IssuedPermitTypeCountyLease / wellDepthStatusAPIOperator change
Jan 12, 2006612059DrillTom GreenKent #18115,000Final completion45132499Now Lipan Flats Production L.L.C.
Nov 8, 2005608949DrillMartinJohnson, Ted #20110,000Final completion31734617Now COG Operating LLC
Jul 30, 2004548945DrillSuttonEspy #17,000Unperforated completion43537002Now Rlo Partnership
Aug 8, 2003534992DrillCokeSefcik #15,450Plugged dry hole (P&A)08131814—
Jul 7, 2003533669DrillCokeMays, Elna #16,500Plugged dry hole (P&A)08131813—
Nov 7, 1997469751DrillIrionLinthicum "24" #47,500Final completion23533711Now Los Hijos de Sanchez J LLC
Nov 7, 1997469750DrillIrionLinthicum "24" #37,500Final completion23533712—
Jan 10, 1997457185DrillIrionLinthicum "24" #27,500Final completion23533624Now Los Hijos de Sanchez J LLC
Jan 10, 1997457184DrillIrionLinthicum "24" #17,500Final completion23533623Now Los Hijos de Sanchez J LLC
Jan 10, 1997457183DrillIrionLinthicum "1223" #29,000Final completion23533621Now Sem Operating Company LLC
Jan 10, 1997457182DrillIrionLinthicum "1223" #17,500Final completion23533622Now Breck Operating Corp.
Jul 15, 1996450008DrillNolanSouth Lake Trammel Unit #625,900Final completion35332438Now Grayrock Energy II LLC
Jul 9, 1996450000DrillNolanSouth Lake Trammel Unit #635,900—35332439—
Jul 9, 1996449999DrillNolanSouth Lake Trammel Unit #615,900—35332440—
Jul 9, 1996449998DrillNolanSouth Lake Trammel Unit #605,900Plugged dry hole (P&A)35332441—
Jun 17, 1996449341DrillNolanSouth Lake Trammel Unit #645,700Final completion35332435Now Grayrock Energy II LLC
Dec 12, 1995442619DrillNolanSouth Lake Trammel Unit #585,500Final completion35332373Now Grayrock Energy II LLC
Dec 12, 1995442618DrillNolanSouth Lake Trammel Unit #595,500—35332372Now Grayrock Energy II LLC
Dec 12, 1995442618DrillNolanSouth Lake Trammel Unit #595,900Final completion35332372Now Grayrock Energy II LLC
Sep 27, 1995440253DrillTom GreenSparks, O.B. #35,000Final completion45132340Now Lavanco Energy Ltd.
Sep 14, 1995439763DrillTom GreenJohnson #16,000Plugged dry hole (P&A)45132338—
Apr 27, 1995435299DrillIrionNoelke #57,000Final completion23533367Now J & J Services Company
Mar 22, 1995433955DrillIrionMunson #14027,000Final completion23533350Now Munson David M. Inc.
Jan 27, 1995432277DrillIrionMunson #13027,000Final completion23533326Now Munson David M. Inc.
Nov 8, 1994429832DrillCokeTinkler, Jennie #17,500Final completion08131652Acquired from Placid Oil Company
Sep 28, 1994428316DrillIrionNoelke #47,000Final completion23533281Now THP Operating LLC
Aug 1, 1994426460DrillIrionMunson #15027,000Final completion23533266Now Munson David M. Inc.
May 25, 1994424231DrillIrionMunson #13017,000Final completion23533249Now Munson David M. Inc.
Mar 4, 1994421621DrillIrionNoelke #37,000Final completion23533231Now Munson David M. Inc.
Nov 19, 1993418419DrillIrionMunson #15017,000Final completion23533219Now Munson David M. Inc.
Nov 19, 1993418418DrillIrionMunson #14017,000Final completion23533220Now Munson David M. Inc.
Jun 30, 1993413027DrillIrionNoelke #27,000Final completion23533194Now Munson David M. Inc.
Nov 17, 1992406181DrillIrionNoelke "A" #47,000Final completion23533153Now J & J Services Company
Oct 10, 1990378808DrillConchoGreen, Russell "45" #14,000—09531196Acquired from 3-M Energy Corporation
Oct 10, 1990378808DrillConchoGreen, Russell "45" #14,000—09531196Acquired from 3-M Energy Corporation
Oct 10, 1990378808DrillConchoGreen, Russell "45" #14,000Final completion09531196Acquired from 3-M Energy Corporation
Dec 14, 1987340220DrillCrockettJones, E. K. #112,000Final completion10535478Acquired from Union Oil Company of California
Nov 8, 1985290057DrillTom GreenHalfmann, E. A. "C" #1C4,725Final completion45131653Acquired from Merit Oil Company
Apr 19, 1983191948DrillSchleicherRobinson 'A' #15,800Final completion41331317Acquired from Premium Oil & Gas Inc.
Jun 24, 19771716DrillTom GreenWest-Pate #16,500Spudded45130364Acquired from Florida Gas Exploration Company