ROACH -A-

Oil // district 10 // lease#28753

op: WALBET, INC.

fields: WARD, SOUTH

cum_oil

56k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 56,140 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

384 BBL/mo

Di (annual)

10.3%

b-factor

0.0

EUR

44,273 BBL

R-squared

0.330

type

exponential

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7GRAHAM, BILL J. OIL & GAS12,7001986-02-25
6GRAHAM, BILL J. OIL & GAS12,6001985-09-23
5GRAHAM, BILL J. OIL & GAS215,0001985-07-11
4GRAHAM, BILL J. ESTATE12,6001984-12-31
3GRAHAM, BILL J. ESTATE12,6001984-12-11
1GRAHAM, BILL J. ESTATE12,6001983-09-06
2GRAHAM, BILL J. ESTATE12,6001983-09-06
EOF // data source: Texas Railroad Commission // 2026