VON ROSENBERG

Oil // district 3 // lease#13982

op: ATASCA RESOURCES, INC.

cum_oil

50k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2003-06

peak_month

1993-01

-- production_history

cum_oil: 49,987 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

912 BBL/mo

Di (annual)

21.1%

b-factor

0.0

EUR

51,810 BBL

R-squared

0.805

type

exponential

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CRB OIL & GAS, INC.310,5662006-10-31
2CRB OIL & GAS, INC.110,6291981-05-06
EOF // data source: Texas Railroad Commission // 2026