ALLAR-CALLAWAY 27Q

Oil · District 08 · Lease #61931

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

147k BBL

Cum Gas

188k MCF

casinghead

Wells

1

Production

2024-08 — 2026-04

Peak Month

2025-09

Production History

Cum Oil: 146,552 BBL Cum Gas: 187,567 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,491 BBL/mo

Di (annual)

366.6%

b-factor

0.0

EUR

70,881 BBL

R-squared

0.902

type

exponential

Operator History (from monthly production reports)

2024-08 — 2026-07 PIONEER NATURAL RES. USA, INC. 24 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
17HPIONEER NATURAL RES. USA, INC.19,1002024-04-09