SHACKELFORD 10-39A

Oil · District 08 · Lease #64248

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

154k BBL

Cum Gas

319k MCF

casinghead

Wells

1

Production

2025-10 — 2026-04

Peak Month

2025-11

Production History

Cum Oil: 154,414 BBL Cum Gas: 318,669 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

41,659 BBL/mo

Di (annual)

492.6%

b-factor

1.5

EUR

1,256,079 BBL

R-squared

0.942

type

hyperbolic

Operator History (from monthly production reports)

2025-10 — 2026-07 PIONEER NATURAL RES. USA, INC. 10 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
201HPIONEER NATURAL RES. USA, INC.110,5102024-11-26