DONOVAN -B-

Oil · District 08 · Lease #22522

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

66k BBL

Cum Gas

173k MCF

casinghead

Wells

4

Production

1993-01 — 2020-04

Peak Month

1993-03

Production History

Cum Oil: 66,124 BBL Cum Gas: 172,925 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

719 BBL/mo

Di (annual)

13.6%

b-factor

0.0

EUR

63,601 BBL

R-squared

0.816

type

exponential

Operator History (from monthly production reports)

2021-06 — 2023-05 PIONEER NATURAL RES. USA, INC. 24 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 (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA INC.19,2001986-01-08
3PIONEER NATURAL RES. USA INC.19,4001985-11-04
142-329-30151PIONEER NATURAL RES. USA INC.------
242-329-30184PIONEER NATURAL RES. USA INC.------