< leases

ONEAL, B. J., ETAL

Oil · District 7C · Lease #4049

Operator: UMC PETROLEUM CORPORATION

Fields: TEXEL (DEVONIAN)

Cum Oil

153k BBL

Cum Gas

1.4M MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

2000-07

Production History

Cum Oil: 152,749 BBL Cum Gas: 1,436,914 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

686 BBL/mo

Di (annual)

6.1%

b-factor

0.0

EUR

129,103 BBL

R-squared

0.417

type

exponential

Operator History (from monthly production reports)

2022-12 — 2026-07 DIAMONDBACK E&P LLC 44 mo
2019-07 — 2022-11 FIREBIRD ENERGY LLC 41 mo
2016-08 — 2019-06 FDL OPERATING, LLC 35 mo
2006-01 — 2016-07 DEVON ENERGY PRODUCTION CO, L.P. 127 mo
2003-09 — 2005-12 DEVON LOUISIANA CORPORATION 28 mo
1998-08 — 2003-08 OCEAN ENERGY, INC. 61 mo
1995-10 — 1998-07 UMC PETROLEUM CORPORATION 34 mo
1995-02 — 1995-09 PENNZOIL EXPLORATION & PROD. CO. 8 mo
1993-01 — 1995-01 PENNZOIL PETROLEUM COMPANY 25 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
442-461-32674DIAMONDBACK E&P LLC512,7002014-12-19
342-461-32582DIAMONDBACK E&P LLC412,4002006-02-13
1 L42-461-01133DIAMONDBACK E&P LLC------