LECK -B-

Oil // district 10 // lease#32211

op: KEYSTONE ENERGY OIL & GAS, INC.

fields: HENDRICK

cum_oil

11k BBL

cum_gas

0 MCF

wells

3

production

1993-01 — 2000-04

peak_month

1993-01

-- production_history

cum_oil: 11,477 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

320 BBL/mo

Di (annual)

31.6%

b-factor

0.0

EUR

12,105 BBL

R-squared

0.768

type

exponential

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4KEYSTONE ENERGY OIL & GAS, INC.13,3001989-02-17
1KEYSTONE ENERGY OIL & GAS, INC.13,3001989-01-27
2KEYSTONE ENERGY OIL & GAS, INC.13,3001989-01-27
EOF // multi-state drilling data platform // 2026