ECHOLS

Oil // district 13 // lease#21159

op: SHERLEY & CUBA

cum_oil

27k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

2003-03

-- production_history

cum_oil: 27,274 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

121 BBL/mo

Di (annual)

4.0%

b-factor

0.0

EUR

31,253 BBL

R-squared

0.420

type

exponential

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7CUBA, JOHN H.11,5002012-12-13
6CUBA, JOHN H.11,5002008-01-15
2SCOTT & TATUM21,5001982-07-19
18SHERLEY, O. C.11,4001981-09-09
4SCOTT & TATUM11,5001981-07-22
17SHERLEY, O. C.11,4001981-07-20
3SCOTT & TATUM11,5001981-05-07
1SCOTT & TATUM11,5001981-04-17
1442-009-81501--------
842-009-81500--------
EOF // multi-state drilling data platform // 2026