COLE UNIT

Oil // district 8 // lease#8420

op: SUBSURFACE PRODUCTION, INC.

cum_oil

18k BBL

cum_gas

0 MCF

wells

6

production

1993-01 — 2026-03

peak_month

1998-07

-- production_history

cum_oil: 18,481 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

134 BBL/mo

Di (annual)

14.9%

b-factor

0.0

EUR

10,703 BBL

R-squared

0.371

type

exponential

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
A 4BENTLEY & LAING14,0001983-12-22
A 3BENTLEY & LAING14,0001983-11-14
A 1BENTLEY & LAING14,0001983-08-18
4342-253-02638--------
6542-253-80769--------
6742-253-03213--------
EOF // multi-state drilling data platform // 2026