CRESPI -B-

Oil · District 08 · Lease #22167

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

143k BBL

Cum Gas

412k MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

2017-05

Production History

Cum Oil: 142,716 BBL Cum Gas: 411,944 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,850 BBL/mo

Di (annual)

235.4%

b-factor

0.8

EUR

66,766 BBL

R-squared

0.924

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2018-08 — 2021-05 DE3 OPERATING LLC 34 mo
2003-10 — 2018-07 JM COX RESOURCES, L.P. 178 mo
1993-01 — 2003-09 COX, JOHN L. 129 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6PIONEER NATURAL RES. USA, INC.312,0002016-12-15
5PIONEER NATURAL RES. USA, INC.29,2002000-03-23
4PIONEER NATURAL RES. USA, INC.19,2001985-09-10
142-329-30093PIONEER NATURAL RES. USA, INC.------
1WD42-329-00665PIONEER NATURAL RES. USA, INC.------
242-329-30112PIONEER NATURAL RES. USA, INC.------
342-329-30189PIONEER NATURAL RES. USA, INC.------