CALVERLEY -24-

Oil · District 08 · Lease #27117

Operator: UNIVERSAL RESOURCES CORP.

Cum Oil

350k BBL

Cum Gas

962k MCF

casinghead

Wells

5

Production

1993-01 — 2019-11

Peak Month

1993-01

Production History

Cum Oil: 349,825 BBL Cum Gas: 962,090 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,584 BBL/mo

Di (annual)

27.3%

b-factor

0.1

EUR

370,386 BBL

R-squared

0.908

type

hyperbolic

Operator History (from monthly production reports)

2005-07 — 2020-03 ENDEAVOR ENERGY RESOURCES L.P. 177 mo
2004-05 — 2005-06 FOREST OIL PERMIAN CORPORATION 14 mo
1999-11 — 2004-04 MAYNARD OIL CO. 54 mo
1999-04 — 1999-10 QUESTAR EXPL. AND PROD. CO. 7 mo
1996-10 — 1999-03 UNIVERSAL RESOURCES CORP. 30 mo
1993-01 — 1996-09 DALLAS PRODUCTION, INC. 45 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9024DIAMONDBACK E&P LLC18,1001987-11-25
7024ENDEAVOR ENERGY RESOURCES L.P.18,0501985-04-19
6ENDEAVOR ENERGY RESOURCES L.P.18,0001984-11-08
5ENDEAVOR ENERGY RESOURCES L.P.18,0001984-08-09
1ENDEAVOR ENERGY RESOURCES L.P.111,0001981-11-03