< leases

RICHARDSON, T. J.

Oil · District 7B · Lease #26707

Operator: WESTPORT OIL AND GAS COMPANY, LP

Fields: KATZ

Cum Oil

275k BBL

Cum Gas

2k MCF

casinghead

Wells

3

Production

1993-01 — 2009-10

Peak Month

2000-10

Production History

Cum Oil: 274,758 BBL Cum Gas: 1,583 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,688 BBL/mo

Di (annual)

42.0%

b-factor

0.0

EUR

105,318 BBL

R-squared

0.844

type

exponential

Operator History (from monthly production reports)

2007-04 — 2010-05 APACHE CORPORATION 38 mo
2006-03 — 2007-03 KERR-MCGEE OIL & GAS ONSHORE LP 13 mo
2002-03 — 2006-02 WESTPORT OIL AND GAS COMPANY, LP 48 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 (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
342-275-32110CHOLLA PETROLEUM INC.16,0001998-05-13
242-275-32005CHOLLA PETROLEUM INC.15,5001991-12-23
142-275-31984CHOLLA PETROLEUM INC.15,5001991-02-15