ANCELL -H-

Oil // district 13 // lease#20226

op: QUATRO OIL AND GAS, INC.

cum_oil

165k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

2014-10

-- production_history

cum_oil: 165,483 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,426 BBL/mo

Di (annual)

11.3%

b-factor

0.0

EUR

151,488 BBL

R-squared

0.337

type

exponential

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10QUATRO OIL AND GAS, INC.14,6002014-11-25
9QUATRO OIL AND GAS, INC.14,6002014-07-08
H 7QUATRO OIL AND GAS, INC.14,6002014-01-16
6QUATRO OIL AND GAS, INC.14,6002013-06-26
3ELLIS, KEN OIL CO.14,2001982-08-25
2ELLIS, KEN OIL CO.14,2001980-10-16
1ELLIS, KEN OIL CO.14,5001980-05-22
EOF // data source: Texas Railroad Commission // 2026