SHACKELFORD W39A

Oil · District 08 · Lease #52572

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

289k BBL

Cum Gas

1.5M MCF

casinghead

Wells

1

Production

2019-08 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 288,709 BBL Cum Gas: 1,511,308 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

26,523 BBL/mo

Di (annual)

195.8%

b-factor

0.4

EUR

270,208 BBL

R-squared

0.948

type

hyperbolic

Operator History (from monthly production reports)

2019-08 — 2026-07 PIONEER NATURAL RES. USA, INC. 84 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPIONEER NATURAL RES. USA, INC.110,6002019-02-11