BIRDWELL UNIT I

Oil · District 03 · Lease #17036

Operator: VINTAGE PETROLEUM, INC.

Cum Oil

29k BBL

Cum Gas

65k MCF

casinghead

Wells

2

Production

1993-01 — 2006-11

Peak Month

1993-04

Production History

Cum Oil: 29,497 BBL Cum Gas: 64,633 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

574 BBL/mo

Di (annual)

26.3%

b-factor

0.0

EUR

26,163 BBL

R-squared

0.825

type

exponential

Operator History (from monthly production reports)

2002-10 — 2014-08 CHAPARRAL ENERGY, L.L.C. 143 mo
2001-12 — 2002-09 CHAPARRAL (USA) ENERGY, INC. 10 mo
1993-01 — 2001-11 VINTAGE PETROLEUM, INC. 107 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2CHAPARRAL ENERGY L.L.C.110,0001985-07-02
1CHAPARRAL ENERGY L.L.C.110,2001983-09-06