Years ended December 31:

2022

2021

2020

(Loss) income before income taxes

$

(23,956)

$

17,547

$

11,179

Computed recovery (expense) of income taxes

$

6,383

$

(5,982)

$

(6,521)

Decrease (increase) in income taxes resulting from:

Effect of change in income tax rate

—

(13)

Other non-taxable income

326

160

(1)

Revisions to prior years

(1,064)

351

(21)

Capital gains and losses on dispositions, net

(454)

83

35

Resource property revenue taxes

(4,130)

(5,758)

(4,433)

Unrecognized losses in current year

(330)

(199)

(1)

Previously unrecognized deferred income tax assets, net

927

302

113

Permanent differences

(1,063)

(262)

(92)

Other non-taxable income

—

1,156

—

Other, net

(46)

(27)

(33)

Income tax recovery (expense)

$

549

$

(10,176)

$

(10,967)