KELLER

Oil · District 01 · Lease #20449

Operator: WINCHESTER OIL & GAS LLC

Fields: CHICON LAKE

Cum Oil

640 BBL

Cum Gas

0 MCF

Wells

7

Production

2019-07 — 2025-07

Peak Month

2024-09

Production History

Cum Oil: 640 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

104 BBL/mo

Di (annual)

795.2%

b-factor

1.6

EUR

2,680 BBL

R-squared

0.823

type

hyperbolic

Operator History (from monthly production reports)

2024-04 — 2025-11 1859 OPERATING LLC 20 mo
2019-07 — 2024-03 WINCHESTER OIL & GAS LLC 57 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
K3081859 OPERATING LLC11,1002013-09-13
K3091859 OPERATING LLC11,1002013-09-13
K3101859 OPERATING LLC11,1002013-09-13
K3111859 OPERATING LLC11,1002013-09-13
K3121859 OPERATING LLC11,1002013-09-13
K3131859 OPERATING LLC11,1002013-09-13
K3141859 OPERATING LLC11,1002013-09-13