GRIGSBY -A-

Oil // district 13 // lease#21440

op: QUATRO OIL AND GAS, INC.

cum_oil

110k BBL

cum_gas

0 MCF

wells

3

production

1993-01 — 2026-03

peak_month

1998-08

-- production_history

cum_oil: 109,643 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,918 BBL/mo

Di (annual)

25.1%

b-factor

0.0

EUR

91,793 BBL

R-squared

0.604

type

exponential

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1AMITCHELL DRILLING CO.14,2001984-05-23
2MITCHELL DRILLING CO.14,5001982-08-06
1MITCHELL DRILLING CO.14,8001981-05-14
EOF // multi-state drilling data platform // 2026