COLUMBUS FIELD UNIT

Oil · District 03 · Lease #20702

Operator: OXY USA INC.

Cum Oil

22k BBL

Cum Gas

158k MCF

casinghead

Wells

3

Production

1993-01 — 2001-08

Peak Month

1999-12

Production History

Cum Oil: 21,830 BBL Cum Gas: 157,549 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,131 BBL/mo

Di (annual)

91.9%

b-factor

0.2

EUR

18,396 BBL

R-squared

0.780

type

hyperbolic

Operator History (from monthly production reports)

2002-04 — 2002-05 DEVON ENERGY OPERATING CO., L.P. 2 mo
2001-01 — 2002-03 MITCHELL ENERGY COMPANY L.P. 15 mo
1998-05 — 2000-12 MITCHELL ENERGY CORPORATION 32 mo
1993-01 — 1998-04 OXY USA INC. 64 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1026RUSK ENERGY OPERATING LLC110,6001999-05-06
1101DEVON ENERGY OPERATING CO. L.P.59,8001996-07-08
62RUSK ENERGY OPERATING LLC110,2021990-05-29