ROBERTSON

Oil // district 9 // lease#8813

op: CHARTER PETROLEUM COMPANY

cum_oil

122k BBL

cum_gas

0 MCF

wells

3

production

1993-01 — 2026-03

peak_month

1994-05

-- production_history

cum_oil: 121,648 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,317 BBL/mo

Di (annual)

17.9%

b-factor

0.2

EUR

108,299 BBL

R-squared

0.743

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7CROWN EXPLORATION COMPANY16,1001981-08-25
4CROWN EXPLORATION COMPANY16,1001981-06-15
1CROWN EXPLORATION COMPANY16,0001980-11-25
EOF // multi-state drilling data platform // 2026