WINDHAM, R.S. "C"

Oil · District 7C · Lease #15808

Operator: SOUTHWEST ROYALTIES, INC.

Cum Oil

84k BBL

Cum Gas

616k MCF

casinghead

Wells

2

Production

2005-08 — 2026-04

Peak Month

2007-10

Production History

Cum Oil: 84,450 BBL Cum Gas: 616,443 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,708 BBL/mo

Di (annual)

434.9%

b-factor

0.7

EUR

62,930 BBL

R-squared

0.937

type

hyperbolic

Operator History (from monthly production reports)

2005-08 — 2026-07 SOUTHWEST ROYALTIES, INC. 252 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SOUTHWEST ROYALTIES, INC.210,5002005-06-23
2SOUTHWEST ROYALTIES, INC.212,0002005-04-25