FLATHEAD 2-15

Oil · District 08 · Lease #44814

Operator: COTERRA ENERGY OPERATING CO.

Cum Oil

189k BBL

Cum Gas

673k MCF

casinghead

Wells

2

Production

2013-05 — 2026-04

Peak Month

2013-06

Production History

Cum Oil: 189,327 BBL Cum Gas: 672,722 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,963 BBL/mo

Di (annual)

87.2%

b-factor

0.4

EUR

157,716 BBL

R-squared

0.693

type

hyperbolic

Operator History (from monthly production reports)

2025-11 — 2026-07 COTERRA ENERGY OPERATING CO. 9 mo
2013-05 — 2025-10 CIMAREX ENERGY CO. 150 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HCOTERRA ENERGY OPERATING CO.111,1552013-07-11
1HCOTERRA ENERGY OPERATING CO.210,9562013-02-15