E. F. KING

Oil · District 08 · Lease #42650

Operator: THREE RIVERS OPERATING CO LLC

Cum Oil

152k BBL

Cum Gas

2k MCF

casinghead

Wells

2

Production

2012-03 — 2026-04

Peak Month

2012-05

Production History

Cum Oil: 151,871 BBL Cum Gas: 1,779 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2023-03 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 41 mo
2013-01 — 2023-02 LEGACY RESERVES OPERATING LP 122 mo
2012-07 — 2012-12 COG OPERATING LLC 6 mo
2012-03 — 2012-06 THREE RIVERS OPERATING CO LLC 4 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
398HIGHMARK ENERGY OPERATING, LLC36,0002011-08-29
399HIGHMARK ENERGY OPERATING, LLC36,0002011-08-26