RILEY

Oil · District 08 · Lease #26653

Operator: OLSEN ENERGY INC.

Cum Oil

161k BBL

Cum Gas

735k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

1998-05

Production History

Cum Oil: 161,367 BBL Cum Gas: 734,639 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,064 BBL/mo

Di (annual)

15.8%

b-factor

0.0

EUR

80,598 BBL

R-squared

0.749

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2008-01 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 204 mo
1996-06 — 2007-12 OLSEN ENERGY INC. 139 mo
1993-01 — 1996-05 KERR-MCGEE CORPORATION 41 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4ADIAMONDBACK E&P LLC17,2001982-04-13
3DIAMONDBACK E&P LLC16,9001982-02-25
2ADIAMONDBACK E&P LLC16,7001981-12-04
1DIAMONDBACK E&P LLC16,7001981-05-19