COLONIAL I 1-12

Oil · District 08 · Lease #55127

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

473k BBL

Cum Gas

1.2M MCF

casinghead

Wells

2

Production

2020-08 — 2026-04

Peak Month

2021-03

Production History

Cum Oil: 473,480 BBL Cum Gas: 1,221,955 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

35,463 BBL/mo

Di (annual)

269.5%

b-factor

0.9

EUR

653,907 BBL

R-squared

0.950

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2020-08 — 2021-05 DE3 OPERATING LLC 10 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2809HPIONEER NATURAL RES. USA, INC.29,0002020-05-14
4209HPIONEER NATURAL RES. USA, INC.29,5002020-05-14