TXL '43-13'

Oil · District 08 · Lease #31973

Operator: WESTPORT OIL AND GAS COMPANY, LP

Fields: COWDEN, SOUTH (CANYON 8900)

Cum Oil

141k BBL

Cum Gas

414k MCF

casinghead

Wells

2

Production

1993-01 — 2008-07

Peak Month

1993-04

Production History

Cum Oil: 141,039 BBL Cum Gas: 414,217 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,110 BBL/mo

Di (annual)

22.0%

b-factor

0.1

EUR

127,671 BBL

R-squared

0.862

type

hyperbolic

Operator History (from monthly production reports)

2008-03 — 2026-07 OXY USA INC. 221 mo

2004-05 — 2008-02 LATIGO PETROLEUM TEXAS, LP 46 mo

2002-06 — 2004-04 SAGA PET. LTD LIABILITY CO OF CO 23 mo

2002-03 — 2002-05 WESTPORT OIL AND GAS COMPANY, LP 3 mo

1998-09 — 2002-02 BELCO ENERGY CORP. 42 mo

1998-03 — 1998-08 CODA ENERGY, INC. 6 mo

1996-02 — 1998-02 ENERVEST OPERATING, L.L.C. 25 mo

1993-01 — 1996-01 CONOCO INC. 37 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-135-36092	OXY USA INC.	1	9,800	1989-06-01
1	42-135-35750	OXY USA INC.	1	9,400	1987-12-22