COWDEN RANCH "48"

Oil // district 10 // lease#36606

op: VANGUARD OPERATING, LLC

cum_oil

452k BBL

cum_gas

0 MCF

wells

2

production

2001-04 — 2026-03

peak_month

2001-09

-- production_history

cum_oil: 451,867 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

6,580 BBL/mo

Di (annual)

77.2%

b-factor

1.1

EUR

418,501 BBL

R-squared

0.867

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8SOUTHWESTERN ENERGY PROD. CO.27,7002001-05-14
7SOUTHWESTERN ENERGY PROD. CO.27,8002001-04-02
EOF // multi-state drilling data platform // 2026