LATHEM MARY K UNIT

Oil · District 10 · Lease #7174

Operator: RIO PETROLEUM, INC.

Cum Oil

67k BBL

Cum Gas

0 MCF

Wells

1

Production

1996-12 — 2023-09

Peak Month

1997-07

Production History

Cum Oil: 66,954 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,418 BBL/mo

Di (annual)

324.1%

b-factor

0.9

EUR

53,944 BBL

R-squared

0.882

type

hyperbolic

Operator History (from monthly production reports)

2025-11 — 2026-07 HIGH RIVER RES OPERATING, LLC 9 mo
2008-06 — 2025-10 RIO PETROLEUM, INC. 209 mo
2000-04 — 2008-05 EXXON MOBIL CORPORATION 98 mo
1996-12 — 2000-03 EXXON CORP. 40 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HIGH RIVER RES OPERATING LLC16,6001996-09-03