DRENNAN TRUST

Oil · District 7C · Lease #18440

Operator: WISHBONE TEXAS OPERATING CO LLC

Cum Oil

6k BBL

Cum Gas

1k MCF

casinghead

Wells

1

Production

2014-03 — 2026-04

Peak Month

2014-04

Production History

Cum Oil: 5,572 BBL Cum Gas: 1,295 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

136 BBL/mo

Di (annual)

343.4%

b-factor

1.8

EUR

6,993 BBL

R-squared

0.450

type

hyperbolic

Operator History (from monthly production reports)

2025-08 — 2026-07 RETRIEVER OPERATING LLC 12 mo
2019-02 — 2025-07 RING ENERGY, INC. 78 mo
2014-03 — 2019-01 WISHBONE TEXAS OPERATING CO LLC 59 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RETRIEVER OPERATING LLC15,0002013-10-26