CLAYTON "A"

Oil · District 8A · Lease #66255

Operator: SOUTHWEST SWD, INC

Cum Oil

22k BBL

Cum Gas

9k MCF

casinghead

Wells

1

Production

1993-01 — 1998-09

Peak Month

1993-01

Production History

Cum Oil: 22,319 BBL Cum Gas: 8,741 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

791 BBL/mo

Di (annual)

65.7%

b-factor

0.6

EUR

31,343 BBL

R-squared

0.767

type

hyperbolic

Operator History (from monthly production reports)

2000-01 — 2000-10 MANTI OPERATING COMPANY 10 mo
1998-11 — 1999-12 ARKLAND PRODUCING CO., INC. 14 mo
1998-10 — 1998-10 SOUTHWEST SWD, INC 1 mo
1993-01 — 1998-09 MARSHALL & WINSTON, INC. 69 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MANTI OPERATING COMPANY59,8002000-01-14