DOSHIER "A"

Oil · District 7B · Lease #19500

Operator: ATWELL TECHNICAL SERVICES, INC.

Cum Oil

63 BBL

Cum Gas

7k MCF

casinghead

Wells

1

Production

1993-01 — 2010-12

Peak Month

2005-01

Production History

Cum Oil: 63 BBL Cum Gas: 6,614 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2 BBL/mo

Di (annual)

18.2%

b-factor

0.0

EUR

50 BBL

R-squared

0.459

type

exponential

Operator History (from monthly production reports)

1996-11 — 2026-07 ATWELL TECHNICAL SERVICES, INC. 357 mo
1993-01 — 1996-10 ATWA ENERGY CO. 46 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ATWELL TECHNICAL SERVICES INC.14,3001982-04-14