POWELL, KENNETH L. ESTATE "D"

Oil · District 10 · Lease #6333

Operator: RIO PETROLEUM, INC.

Cum Oil

495k BBL

Cum Gas

22 MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1998-09

Production History

Cum Oil: 495,140 BBL Cum Gas: 22 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,841 BBL/mo

Di (annual)

4.9%

b-factor

0.0

EUR

410,716 BBL

R-squared

0.650

type

exponential

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
1993-01 — 2000-03 EXXON CORP. 87 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HIGH RIVER RES OPERATING, LLC26,8001999-02-04
2DHIGH RIVER RES OPERATING, LLC26,8001999-02-04
1HIGH RIVER RES OPERATING, LLC16,7001985-06-12