WINDHAM, R. S.

Oil · District 7C · Lease #16652

Operator: SOUTHWEST ROYALTIES, INC.

Cum Oil

226k BBL

Cum Gas

3.0M MCF

casinghead

Wells

4

Production

2008-06 — 2026-04

Peak Month

2009-06

Production History

Cum Oil: 226,167 BBL Cum Gas: 2,967,140 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,965 BBL/mo

Di (annual)

80.0%

b-factor

0.6

EUR

230,808 BBL

R-squared

0.896

type

hyperbolic

Operator History (from monthly production reports)

2008-06 — 2026-07 SOUTHWEST ROYALTIES, INC. 218 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8SOUTHWEST ROYALTIES, INC.111,0002008-07-16
4SOUTHWEST ROYALTIES, INC.212,0002008-07-07
6SOUTHWEST ROYALTIES, INC.111,0002008-06-04
5SOUTHWEST ROYALTIES, INC.111,0002008-01-23