SHACKELFORD 39-27AD

Oil · District 08 · Lease #63495

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

250k BBL

Cum Gas

586k MCF

casinghead

Wells

1

Production

2025-02 — 2026-04

Peak Month

2025-08

Production History

Cum Oil: 250,357 BBL Cum Gas: 585,708 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

52,169 BBL/mo

Di (annual)

246.8%

b-factor

0.0

EUR

254,535 BBL

R-squared

0.996

type

exponential

Operator History (from monthly production reports)

2025-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 18 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
204HPIONEER NATURAL RES. USA, INC.110,5782024-08-28