K-BIRD 12 AND 13

Oil · District 7C · Lease #19364

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

456k BBL

Cum Gas

2.2M MCF

casinghead

Wells

1

Production

2016-04 — 2026-04

Peak Month

2016-05

Production History

Cum Oil: 455,815 BBL Cum Gas: 2,216,387 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,901 BBL/mo

Di (annual)

105.1%

b-factor

0.5

EUR

504,042 BBL

R-squared

0.955

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2016-04 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 58 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4407HPIONEER NATURAL RES. USA, INC.19,4002016-01-07