GIDDINGS ESTATE FEE

Oil · District 9 · Lease #11402

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

1.8M BBL

Cum Gas

0 MCF

Wells

88

Production

1993-01 — 2026-03

Peak Month

1993-12

Production History

Cum Oil: 1,753,747 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

32,602 BBL/mo

Di (annual)

24.5%

b-factor

0.0

EUR

1,596,862 BBL

R-squared

0.868

type

exponential

Wells (88)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
10	42-461-31961	EXXON MOBIL CORPORATION	4	12,550	2001-04-26
2113	42-461-33148	EXXON CORP.	1	8,500	1991-03-26
2114	42-461-33149	EXXON CORP.	1	8,500	1991-03-26
3472	42-461-33146	EXXON CORP.	1	8,500	1991-03-04
2141	42-461-32953	EXXON CORP.	1	8,900	1989-12-12
2142	42-461-32936	EXXON CORP.	1	8,900	1989-09-29
1344	42-461-32935	EXXON CORP.	1	8,900	1989-09-22
1346	42-461-32930	EXXON CORP.	1	8,900	1989-09-22
1347	42-461-32931	EXXON CORP.	1	8,900	1989-09-22
1366	42-461-32934	EXXON CORP.	1	8,900	1989-09-22
2143	42-461-32933	EXXON CORP.	1	8,900	1989-09-22
2164	42-461-32932	EXXON CORP.	1	8,900	1989-09-22
2121	42-461-32928	EXXON CORP.	1	8,900	1989-09-18
2123	42-461-32927	EXXON CORP.	1	8,900	1989-09-18
2124	42-461-32926	EXXON CORP.	1	8,900	1989-09-18
4811	42-461-32929	EXXON CORP.	1	8,900	1989-09-15
1275	42-461-32925	EXXON CORP.	1	8,900	1989-09-08
1351	42-461-32924	EXXON CORP.	1	8,900	1989-09-08
3178	42-461-32923	EXXON CORP.	2	8,900	1989-09-08
3445	42-461-32922	EXXON CORP.	1	8,900	1989-09-05
1212	42-461-32918	EXXON CORP.	1	8,900	1989-06-27
1254	42-461-32919	EXXON CORP.	1	8,900	1989-06-27
1323	42-461-32915	EXXON CORP.	1	8,900	1989-06-27
1324	42-461-32917	EXXON CORP.	1	8,900	1989-06-27
1343	42-461-32916	EXXON CORP.	1	8,900	1989-06-27
2125	42-461-32902	EXXON CORP.	1	8,900	1989-05-18
2144	42-461-32901	EXXON CORP.	1	8,900	1989-05-18
2165	42-461-32905	EXXON CORP.	1	8,900	1989-05-18
3421	42-461-32894	EXXON CORP.	1	8,900	1989-04-19
2101	42-461-32890	EXXON CORP.	1	8,900	1989-04-03
3422	42-461-32891	EXXON CORP.	1	8,900	1989-04-03
3442	42-461-32892	EXXON CORP.	1	8,900	1989-04-03
3482	42-461-32889	EXXON CORP.	1	8,900	1989-04-03
3484	42-461-32888	EXXON CORP.	1	8,900	1989-04-03
1237A	42-461-32883	EXXON CORP.	2	8,900	1989-03-16
1367A	42-461-32857	EXXON CORP.	1	8,900	1988-11-02
1361	42-461-32834	EXXON CORP.	1	8,900	1988-08-16
1365	42-461-32835	EXXON CORP.	1	8,900	1988-08-16
1381	42-461-32836	EXXON CORP.	1	8,900	1988-08-16
1384	42-461-32839	EXXON CORP.	1	8,900	1988-08-16
1385	42-461-32840	EXXON CORP.	1	8,900	1988-08-16
1382	42-461-32837	EXXON CORP.	1	8,900	1988-08-15
1383	42-461-32838	EXXON CORP.	1	8,900	1988-08-15
1255	42-461-32827	EXXON CORP.	1	8,900	1988-08-09
2167	42-461-32826	EXXON CORP.	1	8,900	1988-08-09
3423	42-461-32824	EXXON CORP.	1	8,900	1988-08-09
3464	42-461-32825	EXXON CORP.	1	8,900	1988-08-09
3465	42-461-32823	EXXON CORP.	1	8,900	1988-08-09
1256	42-461-32819	EXXON CORP.	2	8,500	1988-07-12
1213	42-461-32815	EXXON CORP.	2	8,500	1988-06-30
2146	42-461-32816	EXXON CORP.	3	8,500	1988-06-30
1233	42-461-32806	EXXON CORP.	3	8,500	1988-06-14
1274	42-461-32807	EXXON CORP.	2	8,500	1988-06-14
1325	42-461-32808	EXXON CORP.	2	8,500	1988-06-14
2163	42-461-32810	EXXON CORP.	2	8,500	1988-06-14
3466	42-461-32811	EXXON CORP.	3	8,500	1988-06-14
3443	42-461-32792	EXXON CORP.	2	8,500	1988-04-27
3453	42-461-32793	EXXON CORP.	1	8,500	1988-04-27
1362A	42-461-32785	EXXON CORP.	2	8,500	1988-03-24
1257	42-461-32776	EXXON CORP.	1	8,500	1988-03-16
3462	42-461-32778	EXXON CORP.	1	8,500	1988-03-16
1364	42-461-32777	EXXON CORP.	1	8,500	1988-03-15
2126	42-461-32774	EXXON CORP.	2	8,500	1988-03-11
2127	42-461-32775	EXXON CORP.	1	8,500	1988-03-11
2145	42-461-32773	EXXON CORP.	2	8,500	1988-03-11
1363	42-461-32769	EXXON CORP.	1	8,500	1988-03-03
1214	42-461-32729	EXXON CORP.	1	8,500	1988-01-07
1177	42-461-32724	EXXON CORP.	1	8,500	1987-12-30
3424	42-461-32723	EXXON CORP.	2	8,900	1987-12-30
3461	42-461-32725	EXXON CORP.	1	8,500	1987-12-30
2147	42-461-32721	EXXON CORP.	1	8,500	1987-12-28
3463	42-461-32722	EXXON CORP.	2	8,500	1987-12-28
2166	42-461-32704	EXXON CORP.	2	8,900	1987-11-23
3115	42-461-32708	EXXON CORP.	1	8,500	1987-11-23
1371	42-461-32644	EXXON CORP.	1	8,450	1987-06-08
3471	42-461-32640	EXXON CORP.	1	8,450	1987-06-08
3481	42-461-32641	EXXON CORP.	1	8,450	1987-06-08
1227	42-461-32648	EXXON CORP.	1	8,450	1987-06-03
1341	42-461-32643	EXXON CORP.	1	8,450	1987-06-03
3168	42-461-32639	EXXON CORP.	1	8,450	1987-06-03
3128	42-461-32638	EXXON CORP.	1	8,450	1987-06-02
3138	42-461-32647	EXXON CORP.	1	8,450	1987-06-02
3432	42-461-32645	EXXON CORP.	1	8,450	1987-06-02
1456D	42-461-10262	EXXON CORP.	1	5,000	1986-01-23
1238	42-461-30531	EXXON CORP.	1	13,300	1985-08-20
1236	42-461-32318	EXXON CORP.	1	9,100	1984-11-27
1335	42-461-32317	EXXON CORP.	1	9,100	1984-11-27
2132	42-461-32154	EXXON CORP.	1	9,100	1984-02-21