SHACKELFORD W39B

Oil · District 08 · Lease #52636

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

278k BBL

Cum Gas

1.7M MCF

casinghead

Wells

1

Production

2019-08 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 277,816 BBL Cum Gas: 1,659,677 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

19,312 BBL/mo

Di (annual)

393.9%

b-factor

0.8

EUR

211,818 BBL

R-squared

0.766

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HPIONEER NATURAL RES. USA, INC.110,6002019-02-11