SULLIVAN "A"

Oil · District 8A · Lease #1904

Operator: SOUTHWEST ROYALTIES, INC.

Fields: GARZA

Cum Oil

142k BBL

Cum Gas

11k MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

2019-10

Production History

Cum Oil: 141,821 BBL Cum Gas: 11,130 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

494 BBL/mo

Di (annual)

13.2%

b-factor

0.0

EUR

44,764 BBL

R-squared

0.424

type

exponential

Operator History (from monthly production reports)

2007-02 — 2026-07 BROWN, GEO. R PARTNERSHIP,LP,THE 234 mo
1999-02 — 2007-01 SHENANDOAH PETROLEUM CORPORATION 96 mo
1993-01 — 1999-01 SOUTHWEST ROYALTIES, INC. 73 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6BROWN, GEO. R PARTNERSHIP,LP,THE13,2002008-04-01
5BROWN, GEO. R PARTNERSHIP,LP,THE12,8962005-10-13
3BROWN, GEO. R PARTNERSHIP,LP,THE13,3001984-07-23
4BROWN, GEO. R PARTNERSHIP,LP,THE13,3001984-07-23
142-169-01424BROWN, GEO. R PARTNERSHIP,LP,THE------