OPERATORS · TEXAS · P-5 NUMBER 103921

Mountainside Energy Operating, L

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60 FILINGS · 53 PERMITS · PAGE 1 OF 2 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Sep 16, 2010	701515	Recompletion	Hemphill	B. Jarvis & Sons #4215	11,851	Final completion	21131567	Acquired from Chevron U. S. A. Inc.
Oct 6, 2009	683617	Recompletion	Hemphill	Isaacs 209 #2209	11,507	Final completion	21130899	Acquired from Chevron U. S. A. Inc.
Apr 16, 2009	680396	Recompletion	Hemphill	Isaacs #2214	12,000	Final completion	21130991	Acquired from Chevron U. S. A. Inc.
Feb 13, 2008	654557	Recompletion	Hemphill	Isaacs #2214	12,000	—	21130991	Acquired from Chevron U. S. A. Inc.
Jan 9, 2008	649862	Recompletion	Hemphill	Isaacs #2210	11,655	Final completion	21131118	Acquired from Chevron U. S. A. Inc.
May 15, 2007	638219	Drill	Hemphill	Hobart Ranch #1967	13,500	Final completion	21133900	Acquired from Cimarex Energy Co.
Sep 6, 2006	625235	Drill	Hemphill	Ross #1371	13,400	Spudded	21133704	Acquired from Cimarex Energy Co.
Sep 6, 2006	625235Amendment	Drill	Hemphill	Ross #1371	13,400	Final completion	21133704	Acquired from Cimarex Energy Co.
Jun 8, 2006	619400	Reenter	Hemphill	Ross, A.A. #1071	5,180	Final completion	21132645	Acquired from Chevron U. S. A. Inc.
Mar 28, 2006	615041	Drill	Hemphill	Ross #1271	12,800	Final completion	21133532	Acquired from Cimarex Energy Co.
Mar 28, 2006	615040	Drill	Hemphill	Ross #1171	12,800	Final completion	21133531	Acquired from Cimarex Energy Co.
Jun 27, 2005	602572	Drill	Hemphill	Gulf-Mesa Sappington #5	13,000	Final completion	21133342	Acquired from Samson Lone Star LP
Oct 13, 2003	535429	Drill	Hemphill	Isaacs #7028	10,800	Final completion	21132813	Acquired from Samson Lone Star LP
Oct 13, 2003	535428	Drill	Hemphill	Isaacs #8028	10,800	Spudded	21132814	Acquired from Samson Lone Star LP
Oct 13, 2003	535428Amendment	Drill	Hemphill	Isaacs #8208	12,500	Final completion	21132814	Acquired from Samson Lone Star LP
Jan 13, 2003	527174	Field transfer	Hemphill	Ross, A. A. #9071	14,500	Final completion	21132431	Acquired from Chevron U. S. A. Inc.
Dec 10, 2002	526226	Drill	Hemphill	Isaacs #6208	10,800	—	21132672	Acquired from Samson Lone Star LP
Dec 10, 2002	526226Amendment	Drill	Hemphill	Isaacs #6208	10,800	Final completion	21132672	Acquired from Samson Lone Star LP
Sep 10, 2002	523547	Drill	Hemphill	Ross, A. A. #1071	14,000	Spudded	21132645	Acquired from Chevron U. S. A. Inc.
Sep 10, 2002	523547Amendment	Drill	Hemphill	Ross, A. A. #1071	14,000	—	21132645	Acquired from Chevron U. S. A. Inc.
Sep 10, 2002	523547Amendment	Drill	Hemphill	Ross, A. A. #1071	14,000	Unperforated completion	21132645	Acquired from Chevron U. S. A. Inc.
May 16, 2002	520015	Recompletion	Hemphill	Jarvis, B. & Sons #4215	11,851	—	21131567	Acquired from Chevron U. S. A. Inc.
Aug 17, 2001	512729	Drill	Hemphill	Jarvis, Billy #3	12,200	Final completion	21132546	Acquired from Apache Corporation
Jun 2, 2000	495778	Drill	Hemphill	Ross, A. A. #9071	14,500	Final completion	21132431	Acquired from Chevron U. S. A. Inc.
Dec 22, 1999	489808	Recompletion	Hemphill	Isaacs -209- #3209	10,900	Final completion	21131279	Acquired from Chevron U. S. A. Inc.
Oct 5, 1999	481059	Drill	Hemphill	Isaacs 209 #9	10,800	Final completion	21132326	Acquired from Samson Lone Star LP
Aug 24, 1999	481058	Drill	Hemphill	Isaacs 210 #8	10,800	Final completion	21132325	Acquired from Samson Lone Star LP
Jul 7, 1999	485647	Drill	Hemphill	Campbell #502	10,800	Final completion	21132365	Acquired from Crescendo Resources, L.P.
Jul 7, 1999	485647Amendment	Drill	Hemphill	Campbell #502	10,800	—	21132365	Acquired from Chevron U. S. A. Inc.
Nov 20, 1998	481057	Drill	Hemphill	Isaacs 208 #4	10,800	—	21132324	Acquired from Samson Lone Star LP
Nov 20, 1998	481057Amendment	Drill	Hemphill	Isaacs 208 #4	10,800	Final completion	21132324	Acquired from Samson Lone Star LP
Jul 14, 1994	425855	Drill	Hemphill	Isaacs #7210	8,000	Final completion	21132082	Acquired from Chevron U. S. A. Inc.
Jul 14, 1994	425854	Drill	Hemphill	Flowers #31	8,000	Final completion	21132081	Acquired from Chevron U. S. A. Inc.
Jun 30, 1994	425454	Drill	Hemphill	Isaacs #6210	8,000	Final completion	21132078	Acquired from Chevron U. S. A. Inc.
Jun 25, 1993	413112	Recompletion	Hemphill	Isaacs #1209	13,550	Final completion	21130603	Acquired from Chevron U. S. A. Inc.
Oct 25, 1988	352540	Recompletion	Hemphill	Isaacs #2212	11,600	Final completion	21131046	Acquired from Chevron U. S. A. Inc.
Apr 22, 1988	345281	Recompletion	Hemphill	Isaacs #2209	11,507	Unsuccessful workover	21130899	Acquired from Chevron U. S. A. Inc.
Jun 28, 1985	279211	Drill	Hemphill	Isaacs "209" #7209	7,500	Plugged dry hole (exploratory)	21131780	Acquired from Gulf Oil Corp.
Nov 13, 1984	257775	Recompletion	Hemphill	Isaacs 209 #3209	11,710	Final completion	21131279	Acquired from Gulf Oil Corp.
Sep 6, 1984	250555	Drill	Hemphill	Gulf-Mesa Sappington #4	11,600	Final completion	21131718	Acquired from Gulf Oil Corp.
Sep 22, 1983	214005	Recompletion	Hemphill	Isaacs #3208	11,600	Final completion	21131202	Acquired from Gulf Oil Corp.
Dec 31, 1982	184909	Drill	Hemphill	Jarvis, B. & Sons #4215	12,600	Final completion	21131567	Acquired from Gulf Oil Corp.
Dec 30, 1981	146733	Drill	Hemphill	Isaacs #3-210	11,000	Final completion	21131440	Acquired from Gulf Oil Corp.
Dec 10, 1981	143426	Drill	Hemphill	Jarvis #4-213	8,200	Final completion	21131429	Acquired from Gulf Oil Corp.
Nov 6, 1981	140125	Drill	Hemphill	Issacs-Simpson #3-214	8,000	Final completion	21131421	Acquired from Gulf Oil Corp.
Sep 29, 1980	94888	Drill	Hemphill	Isaacs #3-209	12,200	Final completion	21131279	Acquired from Gulf Oil Corp.
Sep 12, 1980	94907	Drill	Hemphill	Campbell #1-50	12,200	Final completion	21131170	Acquired from Gulf Oil Corp.
Aug 13, 1980	89645	Drill	Hemphill	Jarvis, Billie #2220	12,300	Final completion	21131257	Acquired from Gulf Oil Corp.
May 8, 1980	81093	Drill	Hemphill	Campbell #1-2	12,300	Final completion	21131227	Acquired from Gulf Oil Corp.
Feb 6, 1980	72402	Drill	Hemphill	Isaacs 208 #3-208	12,100	Final completion	21131202	Acquired from Gulf Oil Corp.