CALVERLY, STEVE, JR "B"

Oil · District 08 · Lease #24461

Operator: UNIVERSAL RESOURCES CORP.

Cum Oil

324k BBL

Cum Gas

788k MCF

casinghead

Wells

6

Production

1993-01 — 2013-03

Peak Month

1993-06

Production History

Cum Oil: 323,720 BBL Cum Gas: 788,427 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,470 BBL/mo

Di (annual)

21.5%

b-factor

0.0

EUR

249,061 BBL

R-squared

0.942

type

exponential

Operator History (from monthly production reports)

2005-07 — 2019-11 ENDEAVOR ENERGY RESOURCES L.P. 173 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 (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7014ENDEAVOR ENERGY RESOURCES L.P.18,2001985-11-06
8014ENDEAVOR ENERGY RESOURCES L.P.18,2001985-03-22
5014ENDEAVOR ENERGY RESOURCES L.P.18,1001984-08-28
3ENDEAVOR ENERGY RESOURCES L.P.18,1001977-10-13
142-173-30432ENDEAVOR ENERGY RESOURCES L.P.------
242-173-30453ENDEAVOR ENERGY RESOURCES L.P.------