SHACKELFORD 39-27AH

Oil · District 08 · Lease #63643

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

230k BBL

Cum Gas

571k MCF

casinghead

Wells

1

Production

2025-07 — 2026-04

Peak Month

2025-08

Production History

Cum Oil: 230,220 BBL Cum Gas: 570,809 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

52,069 BBL/mo

Di (annual)

383.9%

b-factor

0.6

EUR

391,210 BBL

R-squared

0.973

type

hyperbolic

Operator History (from monthly production reports)

2025-07 — 2026-07 PIONEER NATURAL RES. USA, INC. 13 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
208HPIONEER NATURAL RES. USA, INC.110,5782024-08-27