BARRETT

Oil · District 10 · Lease #6659

Operator: WILLIAMS, W. R., INC.

Cum Oil

13k BBL

Cum Gas

233k MCF

casinghead

Wells

3

Production

1993-01 — 2026-03

Peak Month

1993-07

Production History

Cum Oil: 13,492 BBL Cum Gas: 232,564 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

127 BBL/mo

Di (annual)

25.4%

b-factor

0.7

EUR

12,448 BBL

R-squared

0.542

type

hyperbolic

Operator History (from monthly production reports)

2023-11 — 2026-07 SANCHEZ PRODUCTION, LLC 33 mo
2001-08 — 2023-10 WILLIAMS, W. R., INC. 267 mo
1999-02 — 2001-07 WILLIAMS, W. R. 30 mo
1996-09 — 1999-01 FORT WORTH NATURAL GAS, INC. 29 mo
1993-01 — 1996-08 VRK OIL AND GAS, INC. 44 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1321SANCHEZ PRODUCTION, LLC23,5001994-09-21
1322ASANCHEZ PRODUCTION, LLC13,8001990-03-15
1311SANCHEZ PRODUCTION, LLC23,5001989-05-31