JOHNSON, E. J. -45-

Oil · District 7C · Lease #5985

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

17k BBL

Cum Gas

54k MCF

casinghead

Wells

4

Production

1993-01 — 2020-08

Peak Month

1993-07

Production History

Cum Oil: 16,991 BBL Cum Gas: 54,105 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

139 BBL/mo

Di (annual)

22.1%

b-factor

0.7

EUR

15,166 BBL

R-squared

0.525

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2023-12 PIONEER NATURAL RES. USA, INC. 31 mo
2018-09 — 2021-05 DE3 OPERATING LLC 33 mo
2003-10 — 2018-08 JM COX RESOURCES, L.P. 179 mo
1993-01 — 2003-09 COX, JOHN L. 129 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA INC.110,8001990-06-13
3PIONEER NATURAL RES. USA INC.111,0001985-02-14
142-383-01179PIONEER NATURAL RES. USA INC.------
242-383-01180PIONEER NATURAL RES. USA INC.------