< leases

SPONBERG, J. O.

Oil · District 04 · Lease #8727

Operator: URBAN OIL & GAS GROUP, LLC

Fields: AGUA DULCE (AUSTIN,UP. NW. SEG)

Cum Oil

4k BBL

Cum Gas

69k MCF

casinghead

Wells

2

Production

1993-01 — 2006-04

Peak Month

1996-07

Production History

Cum Oil: 4,029 BBL Cum Gas: 69,058 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

376 BBL/mo

Di (annual)

804.9%

b-factor

1.1

EUR

4,166 BBL

R-squared

0.884

type

hyperbolic

Operator History (from monthly production reports)

2017-08 — 2026-07 URBAN OIL & GAS GROUP, LLC 108 mo
2017-05 — 2017-07 LINN OPERATING, LLC 3 mo
2014-12 — 2017-04 LINN OPERATING, INC. 29 mo
2000-04 — 2014-11 DEVON ENERGY PRODUCTION CO, L.P. 176 mo
1999-03 — 2000-03 PENNZENERGY EXP. & PROD., L.L.C. 13 mo
1993-01 — 1999-02 PENNZOIL EXPLORATION & PROD. CO. 74 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
B 1 T42-355-00331URBAN OIL & GAS GROUP LLC27,5001995-12-08
5 D42-355-30705URBAN OIL & GAS GROUP, LLC16,9091981-01-23