COFFIELD/CULPEPPER -A-

Oil // district 1 // lease#10172

op: EC OIL CO.

cum_oil

973 BBL

cum_gas

0 MCF

wells

13

production

1993-01 — 2026-03

peak_month

1993-09

-- production_history

cum_oil: 973 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

37 BBL/mo

Di (annual)

73.1%

b-factor

0.0

EUR

593 BBL

R-squared

0.458

type

exponential

-- wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
G 5GIBRALTAR MINERALS, INC.16001986-02-18
11NELSON-DEAN ENERGY CORPORATION16001986-01-03
5NELSON-DEAN ENERGY CORPORATION16001986-01-03
10NELSON-DEAN ENERGY CORPORATION16001985-12-06
7NELSON-DEAN ENERGY CORPORATION16001985-12-06
9NELSON-DEAN ENERGY CORPORATION16001985-10-25
6ANELSON-DEAN ENERGY CORPORATION16001985-09-11
8ANELSON-DEAN ENERGY CORPORATION16001985-09-10
G 4GIBRALTAR MINERALS, INC.16001985-06-06
2NELSON-DEAN ENERGY16001985-01-08
3NELSON-DEAN ENERGY16001985-01-08
4NELSON-DEAN ENERGY16001985-01-08
1NELSON-DEAN ENERGY16001984-12-28
EOF // multi-state drilling data platform // 2026