OPERATORS · TEXAS · P-5 NUMBER 840400

TDC Engineering, Inc.

WindowAll time 90 days 1 year 3 years 10 years

TypeDrill 183 Recompletion 9 Reenter 5 Other 3 Reclass 1

28 FILINGS · 27 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
May 18, 1988	346588	Drill	Zapata	San Fernando Minerals #3	10,800	Final completion	50532454	Now Bordertown Energy Resources LLC
Aug 25, 1987	334885	Drill	Zapata	San Fernando Minerals #2	11,000	Final completion	50532362	Now Bordertown Energy Resources LLC
Aug 25, 1987	334885Amendment	Drill	Zapata	San Fernando Minerals #2	11,000	—	50532362	Now Bordertown Energy Resources LLC
Dec 17, 1984	261284	Drill	Zapata	Garza, Alfonso #1	10,000	Final completion	50531950	Now Lobo Resources Ltd.
Nov 14, 1984	257678	Drill	Zapata	San Fernando Minerals #1	11,000	Final completion	50531940	Now Bordertown Energy Resources LLC
Jul 7, 1983	200736	Drill	Zapata	White #2	11,000	—	50531688	—
Jul 1, 1983	200225	Drill	Zapata	White "A" #1	11,000	Plugged dry hole (P&A)	50531686	—
Feb 28, 1983	187099	Drill	Zapata	Fernando #2	11,500	—	50532717	—
Jan 27, 1983	184419	Drill	Zapata	Guerra Heirs #1	10,000	Unsuccessful workover	50531625	Now Transamerican Natural Gas Corp.
Dec 16, 1982	180335	Drill	Zapata	Leonardo #3R	10,700	Final completion	50531605	Now Hilcorp Energy Company
Dec 16, 1982	180325	Drill	Zapata	Porras Gas Unit #1 #2	10,500	Final completion	50531603	Now Hilcorp Energy Company
Dec 16, 1982	180322	Drill	Zapata	Juana #2	10,200	—	50531602	—
Nov 5, 1982	176750	Drill	Zapata	Jennings, Roy, Jr. #2	13,500	Final completion	50531590	Now Chesapeake Operating Inc.
Nov 5, 1982	178320	Drill	Zapata	Leonardo #3	6,409	Plugged dry hole (P&A)	50531595	—
Oct 13, 1982	174168	Drill	Zapata	Trevino (CSG) #4C	10,500	Final completion	50531578	Now Hilcorp Energy Company
Sep 23, 1982	172653	Drill	Zapata	La Perla #43	10,000	Final completion	50531574	Now Hilcorp Energy Company
Sep 9, 1982	171329	Drill	Zapata	Alfonso #4	11,500	Final completion	50531571	Now Hilcorp Energy Company
Aug 26, 1982	170219	Drill	Zapata	La Perla #A3	10,000	Final completion	50531568	Now Hilcorp Energy Company
Aug 16, 1982	169362	Drill	Zapata	Garza #B3	8,300	Plugged dry hole (P&A)	50531564	—
Jul 29, 1982	167696	Drill	Zapata	Alfonso #3	11,000	Final completion	50531558	Now Hilcorp Energy Company
Jul 29, 1982	167627	Drill	Zapata	Flores, M. #2	9,500	Final completion	50531557	Now Hilcorp Energy Company
Jul 2, 1982	166322	Drill	Zapata	Garza, A. #4	10,437	Plugged dry hole (P&A)	50531553	—
Jun 16, 1982	164463	Drill	Zapata	Trevino #3	10,500	Final completion	50531547	Now Hilcorp Energy Company
May 27, 1982	162346	Drill	Zapata	Garza, A. #3	10,500	Final completion	50531539	Now Hilcorp Energy Company
May 5, 1982	159876	Drill	Zapata	Porras Gas Unit # 1 #1	12,500	Final completion	50531531	Now Hilcorp Energy Company
May 5, 1982	159809	Drill	Zapata	Juana #1	10,000	Final completion	50531529	Now Hilcorp Energy Company
Nov 10, 1981	140115	Drill	Zapata	Trujillo #4	2,500	Final completion	50531437	Now Gecko Oil & Gas Inc.
Sep 17, 1981	133392	Drill	Zapata	Flores, E. #5	2,000	Final completion	50531416	Now Gecko Oil & Gas Inc.