WELCH NORTHEAST UNIT

Oil · District 8A · Lease #60301

Operator: UMC PETROLEUM CORPORATION

Fields: WELCH

Cum Oil

723k BBL

Cum Gas

14k MCF

casinghead

Wells

41

Production

1993-01 — 2026-04

Peak Month

1995-03

Production History

Cum Oil: 723,432 BBL Cum Gas: 14,494 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,668 BBL/mo

Di (annual)

7.5%

b-factor

0.0

EUR

732,178 BBL

R-squared

0.800

type

exponential

Operator History (from monthly production reports)

2011-01 — 2026-07 THREE SPAN OIL & GAS, INC. 187 mo
2006-07 — 2010-12 TEXLAND PETROLEUM, L.P. 54 mo
2006-03 — 2006-06 KINDER MORGAN PRODUCTION CO LP 4 mo
2000-09 — 2006-02 JOURNEY OPERATING, L.L.C. 66 mo
1999-04 — 2000-08 MERIT ENERGY COMPANY 17 mo
1998-08 — 1999-03 OCEAN ENERGY, INC. 8 mo
1995-10 — 1998-07 UMC PETROLEUM CORPORATION 34 mo
1995-02 — 1995-09 PENNZOIL EXPLORATION & PROD. CO. 8 mo
1993-01 — 1995-01 PENNZOIL PETROLEUM COMPANY 25 mo

Wells (41)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
912THREE SPAN OIL & GAS, INC.15,0502007-07-26
912WTHREE SPAN OIL & GAS, INC.15,0502007-07-26
911THREE SPAN OIL & GAS, INC.25,0502006-11-20
911 HTHREE SPAN OIL & GAS, INC.25,0502006-11-20
703THREE SPAN OIL & GAS, INC.14,9192006-10-31
703 HTHREE SPAN OIL & GAS, INC.14,9192006-10-31
1604THREE SPAN OIL & GAS, INC.24,9192006-10-25
1604 HTHREE SPAN OIL & GAS, INC.24,9192006-10-25
909THREE SPAN OIL & GAS, INC.14,9192006-10-25
1605THREE SPAN OIL & GAS, INC.14,9501987-08-19
1904THREE SPAN OIL & GAS, INC.14,9501984-10-03
1002X42-305-00037THREE SPAN OIL & GAS, INC.------
1003W42-305-10222THREE SPAN OIL & GAS, INC.------
100442-305-30006THREE SPAN OIL & GAS, INC.------
1004W42-305-30006THREE SPAN OIL & GAS, INC.------
1401W42-445-00187THREE SPAN OIL & GAS, INC.------
140242-445-00188THREE SPAN OIL & GAS, INC.------
140342-305-20003THREE SPAN OIL & GAS, INC.------
1601W42-305-10003THREE SPAN OIL & GAS, INC.------
1601WS42-305-10214THREE SPAN OIL & GAS, INC.------
160242-115-10002THREE SPAN OIL & GAS, INC.------
160342-115-30062THREE SPAN OIL & GAS, INC.------
170142-305-10001THREE SPAN OIL & GAS, INC.------
1702W42-115-10001THREE SPAN OIL & GAS, INC.------
1703W42-305-10002THREE SPAN OIL & GAS, INC.------
170442-115-10607THREE SPAN OIL & GAS, INC.------
170542-115-30516THREE SPAN OIL & GAS, INC.------
170642-305-30065THREE SPAN OIL & GAS, INC.------
190142-115-30411THREE SPAN OIL & GAS, INC.------
190242-115-30412THREE SPAN OIL & GAS, INC.------
1903W42-115-30487THREE SPAN OIL & GAS, INC.------
701W42-305-00143THREE SPAN OIL & GAS, INC.------
70242-305-30007THREE SPAN OIL & GAS, INC.------
901W42-445-10035THREE SPAN OIL & GAS, INC.------
90242-305-00113THREE SPAN OIL & GAS, INC.------
90342-305-10004THREE SPAN OIL & GAS, INC.------
905W42-305-10006THREE SPAN OIL & GAS, INC.------
90642-445-10217THREE SPAN OIL & GAS, INC.------
90742-305-30066THREE SPAN OIL & GAS, INC.------
90842-305-30070THREE SPAN OIL & GAS, INC.------
91042-305-30061THREE SPAN OIL & GAS, INC.------