LANGFORD 419

Oil · District 8A · Lease #69299

Operator: SOUTHWEST ROYALTIES, INC.

Cum Oil

643k BBL

Cum Gas

0 MCF

Wells

1

Production

2008-08 — 2026-04

Peak Month

2020-01

Production History

Cum Oil: 643,221 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,416 BBL/mo

Di (annual)

8.2%

b-factor

0.0

EUR

928,005 BBL

R-squared

0.716

type

exponential

Operator History (from monthly production reports)

2020-10 — 2026-07 SOUTHWEST ROYALTIES, INC. 70 mo
2013-09 — 2020-09 DESERT PRODUCTION, INC. 85 mo
2010-06 — 2013-08 BLUE RIDGE RESOURCES, LLC 39 mo
2008-08 — 2010-05 COBRA OIL & GAS CORPORATION 22 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOUTHWEST ROYALTIES, INC.112,5002008-02-14