Annual report pursuant to Section 13 and 15(d)

ASSET RETIREMENT OBLIGATION

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ASSET RETIREMENT OBLIGATION
12 Months Ended
Dec. 31, 2020
ASSET RETIREMENT OBLIGATION  
ASSET RETIREMENT OBLIGATION

NOTE 11 – ASSET RETIREMENT OBLIGATION

A reconciliation of the asset retirement obligation for the years ended December 31, 2018, 2019 and 2020 is as follows:

Balance, December 31, 2017

$

9,055,697

Liabilities acquired

$

2,571,549

Liabilities incurred

1,311,956

Liabilities settled

(577,824)

Revision of estimate (1)

87,960

Accretion expense

606,459

Balance, December 31, 2018

$

13,055,797

Liabilities acquired

$

3,745,642

Liabilities incurred

631,727

Liabilities settled

(1,589,654)

Accretion expense

943,707

Balance, December 31, 2019

$

16,787,219

Liabilities incurred

99,436

Liabilities settled

(710,577)

Revision of estimate (1)

34,441

Accretion expense

906,616

Balance, December 31, 2020

$

17,117,135

(1) Several factors are considered in the annual review process, including current estimates for removal cost and estimated remaining useful life of the assets. The 2018 revision of estimates reflect decreases in the estimated remaining useful life of certain assets.  The 2020 revision of estimates reflect an adjustment to the estimates for plugging costs.