< leases

JOHNSON, W. D. JR. -E-

Oil · District 08 · Lease #32223

Operator: RANGER 40 PETROLEUM, LLC

Fields: GERALDINE (FORD)

Cum Oil

365k BBL

Cum Gas

361k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

1993-04

Production History

Cum Oil: 364,797 BBL Cum Gas: 360,968 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,295 BBL/mo

Di (annual)

2.6%

b-factor

0.0

EUR

438,321 BBL

R-squared

0.394

type

exponential

Operator History (from monthly production reports)

2025-11 — 2026-07 ELEMENT PETROLEUM OPERATING IV, 9 mo
2022-01 — 2025-10 GRACE PETROLEUM OPERATING, LLC 46 mo
2008-08 — 2021-12 RANGER 40 PETROLEUM, LLC 161 mo
2001-05 — 2008-07 GAP EXPLORATION, LTD. 87 mo
2000-02 — 2001-04 AROC (TEXAS) INC. 15 mo
1997-07 — 2000-01 FAMCOR OIL, INC. 31 mo
1993-01 — 1997-06 M-T PETROLEUM, INC. 54 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-301-30631ELEMENT PETROLEUM OPERATING IV,26,2001990-06-25
9A42-301-30876ELEMENT PETROLEUM OPERATING IV,13,3001989-12-13
342-301-30690ELEMENT PETROLEUM OPERATING IV,26,2001989-06-29
542-301-30693ELEMENT PETROLEUM OPERATING IV,26,2001989-02-02