DUVAL COUNTY RANCH CO. -K-

Oil // district 4 // lease#12377

op: SOUTHWESTERN ENERGY PROD. CO.

cum_oil

8k BBL

cum_gas

0 MCF

wells

1

production

1994-05 — 1999-02

peak_month

1994-11

-- production_history

cum_oil: 7,859 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

485 BBL/mo

Di (annual)

181.8%

b-factor

0.6

EUR

7,336 BBL

R-squared

0.548

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
58SOUTHWESTERN ENERGY PROD. CO.34,8501998-01-28
EOF // multi-state drilling data platform // 2026