GRANT-MCDOUGAL UNIT

Oil · District 03 · Lease #21775

Operator: WILLIAMS, CLAYTON W., JR., INC.

Cum Oil

187k BBL

Cum Gas

228k MCF

casinghead

Wells

2

Production

1993-01 — 2008-11

Peak Month

1993-06

Production History

Cum Oil: 187,217 BBL Cum Gas: 227,762 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,280 BBL/mo

Di (annual)

33.8%

b-factor

0.1

EUR

168,639 BBL

R-squared

0.738

type

hyperbolic

Operator History (from monthly production reports)

1993-06 — 2014-02 WILLIAMS, CLAYTON ENERGY, INC. 249 mo
1993-05 — 1993-05 WILLIAMS, CLAYTON ENERGY, L.L.C 1 mo
1993-01 — 1993-04 WILLIAMS, CLAYTON W., JR., INC. 4 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WILLIAMS CLAYTON W. JR. INC.18,1051992-09-10
1UWILLIAMS CLAYTON W. JR. INC.18,1051992-09-10