Excluded from the Consolidated Statements of Cash Flows were the effects of certain non-cash investing and financing activities, as follows:

2019

2018

2017

Addition (Reduction) of oil & gas

properties by recognitions of

asset retirement obligation

$

(36,000

)

$

(45,000

)

$

251,184

$

(36,000

)

$

(45,000

)

$

251,184

Proceeds from sales of oil and gas properties

$

1,168,000

$

965,000

$

4,767,000

Less:

Capital acquisition under IRC Section 1031

—

(21,000

)

(3,228,000

)

Qualified Intermediary accounts receivable

(250,000

)

579,000

(579,000

)

Negotiated settlements

—

(26,000

)

$

918,000

$

1,523,000

$

934,000