SANDEFUR

Oil · District 08 · Lease #30461

Operator: SOUTHWEST ROYALTIES, INC.

Cum Oil

28k BBL

Cum Gas

402k MCF

casinghead

Wells

1

Production

1993-01 — 2013-08

Peak Month

1999-05

Production History

Cum Oil: 27,942 BBL Cum Gas: 401,511 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

319 BBL/mo

Di (annual)

12.8%

b-factor

0.0

EUR

29,880 BBL

R-squared

0.699

type

exponential

Operator History (from monthly production reports)

1993-01 — 2015-06 SOUTHWEST ROYALTIES, INC. 270 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOUTHWEST ROYALTIES INC.212,3001988-04-29