MARY K.

Oil · District 10 · Lease #6579

Operator: RIO PETROLEUM, INC.

Cum Oil

176k BBL

Cum Gas

21 MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1993-06

Production History

Cum Oil: 176,095 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2025-11 — 2026-07 HIGH RIVER RES OPERATING, LLC 9 mo
1996-02 — 2025-10 RIO PETROLEUM, INC. 357 mo
1993-01 — 1996-01 DUNIGAN OPERATING COMPANY, INC. 37 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1123HIGH RIVER RES OPERATING, LLC16,5001988-06-27