KEY B

Oil · District 08 · Lease #22221

Operator: SANTA FE SNYDER CORPORATION

Cum Oil

96k BBL

Cum Gas

330k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

2014-07

Production History

Cum Oil: 95,727 BBL Cum Gas: 329,588 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,000 BBL/mo

Di (annual)

23.6%

b-factor

0.1

EUR

56,361 BBL

R-squared

0.660

type

hyperbolic

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 (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.110,0002014-02-28
1PIONEER NATURAL RES. USA, INC.19,2601998-09-04
3PIONEER NATURAL RES. USA, INC.212,3001990-10-12
2PIONEER NATURAL RES. USA, INC.19,4001983-07-18