WALDEN

Oil · District 8A · Lease #62223

Operator: SOUTHWEST ROYALTIES, INC.

Cum Oil

1.1M BBL

Cum Gas

9k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2022-05

Production History

Cum Oil: 1,108,085 BBL Cum Gas: 8,520 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,621 BBL/mo

Di (annual)

5.6%

b-factor

0.0

EUR

932,579 BBL

R-squared

0.459

type

exponential

Operator History (from monthly production reports)

1993-01 — 2026-07 SOUTHWEST ROYALTIES, INC. 403 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2SOUTHWEST ROYALTIES, INC.112,0001979-05-11
1SOUTHWEST ROYALTIES, INC.112,0001978-03-08