LOCKHART

Oil · District 08 · Lease #31036

Operator: WINN OPERATING, LLC

Cum Oil

352k BBL

Cum Gas

90k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

2013-03

Production History

Cum Oil: 352,277 BBL Cum Gas: 89,949 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,129 BBL/mo

Di (annual)

1.9%

b-factor

0.0

EUR

435,870 BBL

R-squared

0.323

type

exponential

Operator History (from monthly production reports)

2022-06 — 2026-07 WINN OPERATING, LLC 50 mo
2018-03 — 2022-05 MAMMOTH EXPLORATION LLC 51 mo
2012-12 — 2018-02 SABER OIL & GAS VENTURES, LLC 63 mo
2000-06 — 2012-11 HUNTINGTON ENERGY, L.L.C. 150 mo
1993-01 — 2000-05 CROSS TIMBERS OPERATING COMPANY 89 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4WINN OPERATING, LLC18,8571986-09-12