STUBBLEFIELD

Oil · District 08 · Lease #22000

Operator: SANTA FE SNYDER CORPORATION

Cum Oil

183k BBL

Cum Gas

358k MCF

casinghead

Wells

5

Production

1993-01 — 2026-01

Peak Month

2009-03

Production History

Cum Oil: 183,156 BBL Cum Gas: 358,255 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,276 BBL/mo

Di (annual)

10.0%

b-factor

0.0

EUR

151,356 BBL

R-squared

0.353

type

exponential

Operator History (from monthly production reports)

2004-04 — 2026-07 PIONEER NATURAL RES. USA, INC. 268 mo
2000-12 — 2004-03 MERIT ENERGY COMPANY 40 mo
2000-11 — 2000-11 DEVON SFS OPERATING, INC. 1 mo
1999-11 — 2000-10 SANTA FE SNYDER CORPORATION 12 mo
1993-01 — 1999-10 SANTA FE ENERGY RESOURCES, INC. 82 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6PIONEER NATURAL RES. USA INC.19,5002007-07-16
4PIONEER NATURAL RES. USA INC.19,1752006-06-05
3PIONEER NATURAL RES. USA INC.19,3002005-03-18
142-317-30346PIONEER NATURAL RES. USA INC.------
242-317-30347PIONEER NATURAL RES. USA INC.------