CALVERLEY -B-

Oil · District 08 · Lease #31918

Operator: TAURUS EXPLORATION U.S.A., INC.

Cum Oil

156k BBL

Cum Gas

164k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

2021-10

Production History

Cum Oil: 155,726 BBL Cum Gas: 163,751 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,067 BBL/mo

Di (annual)

37.9%

b-factor

0.0

EUR

65,420 BBL

R-squared

0.620

type

exponential

Operator History (from monthly production reports)

2019-02 — 2026-07 DIAMONDBACK E&P LLC 90 mo
1998-12 — 2019-01 ENERGEN RESOURCES CORPORATION 242 mo
1998-03 — 1998-11 TAURUS EXPLORATION U.S.A., INC. 9 mo
1993-01 — 1998-02 BC OPERATING, INC. 62 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC19,0001988-05-04