SCHARBAUER -34-

Oil · District 08 · Lease #32168

Operator: STEPHENS, AUTRY C.

Cum Oil

83k BBL

Cum Gas

373k MCF

casinghead

Wells

4

Production

1993-01 — 2024-07

Peak Month

1993-01

Production History

Cum Oil: 83,261 BBL Cum Gas: 373,465 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

787 BBL/mo

Di (annual)

48.9%

b-factor

0.5

EUR

35,695 BBL

R-squared

0.401

type

hyperbolic

Operator History (from monthly production reports)

2019-01 — 2026-07 DIAMONDBACK E&P LLC 91 mo
2000-09 — 2018-12 ENDEAVOR ENERGY RESOURCES L.P. 220 mo
1998-10 — 2000-08 STEPHENS, AUTRY C. 23 mo
1993-01 — 1998-09 HENRY PETROLEUM CORP. 69 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4DIAMONDBACK E&P LLC112,0002011-03-28
3DIAMONDBACK E&P LLC112,0002011-02-10
2DIAMONDBACK E&P LLC110,2001990-03-22
1DIAMONDBACK E&P LLC113,4741988-11-22