GOLLADAY -P-

Oil · District 08 · Lease #31605

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

370k BBL

Cum Gas

1.1M MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

2001-03

Production History

Cum Oil: 370,335 BBL Cum Gas: 1,063,545 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,829 BBL/mo

Di (annual)

10.1%

b-factor

0.0

EUR

334,433 BBL

R-squared

0.591

type

exponential

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2020-09 — 2021-05 DE3 OPERATING LLC 9 mo
1997-09 — 2020-08 PIONEER NATURAL RES. USA, INC. 276 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA, INC.19,5001996-10-15
1PIONEER NATURAL RES. USA, INC.19,2501987-10-20
2PIONEER NATURAL RES. USA, INC.19,2501987-10-20