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INCOME TAXES (Tables)
12 Months Ended
Sep. 30, 2023
Income Tax Disclosure [Abstract]  
Components of income (loss) before income taxes, after adjusting the income (loss) for non-controlling interests
The components of (loss) earnings before income taxes, after adjusting the (loss) earnings for non-controlling interests, are as follows:
Year ended September 30,
20232022
United States$(2,414,000)$739,000 
Canada1,400,000 5,121,000 
$(1,014,000)$5,860,000 
Schedule of components of the income tax provision (benefit)
The components of the income tax (benefit) provision related to the above (loss) earnings are as follows:
Year ended September 30,
20232022
Current provision:  
United States – Federal
Before operating loss carryforwards$ $727,000 
Benefit of operating loss carryforwards (665,000)
After operating loss carryforwards 62,000 
United States – State
Before operating loss carryforwards47,000 518,000 
Benefit of operating loss carryforwards (62,000)
After operating loss carryforwards47,000 456,000 
Canadian
Before operating loss carryforwards274,000 510,000 
Benefit of operating loss carryforwards(244,000)(510,000)
After operating loss carryforwards30,000 — 
Total current77,000 518,000 
Deferred benefit:  
United States – State(130,000)(171,000)
Total deferred(130,000)(171,000)
$(53,000)$347,000 
Summary of reconciliation between the reported income tax provision (benefit) and the amount computed by multiplying the loss by the U.S. federal tax rate
A reconciliation between the reported income tax (benefit) expense and the amount computed by multiplying the (loss) earnings attributable to Barnwell before income taxes by the U.S. federal tax rate of 21% is as follows:
Year ended September 30,
20232022
Tax (benefit) provision computed by applying statutory rate$(213,000)$1,231,000 
Increase (decrease) in the valuation allowance182,000 (1,450,000)
Additional effect of the foreign tax provision on the total tax provision(4,000)130,000 
U.S. state income tax (benefit) provision, net of federal effect(9,000)330,000 
U.S. state provision to tax return adjustments(106,000)(45,000)
Uncertain tax positions 62,000 
Other97,000 89,000 
$(53,000)$347,000 
Schedule of tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities
The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows:
 September 30,
 20232022
Deferred income tax assets:  
Foreign tax credit carryover under U.S. tax law$928,000 $953,000 
U.S. federal net operating loss carryover9,406,000 8,258,000 
U.S. state unitary net operating loss carryovers1,177,000 1,117,000 
Canadian net operating loss carryovers1,025,000 877,000 
Tax basis of investment in land in excess of book basis under U.S. tax law25,000 26,000 
Property and equipment accumulated book depreciation and depletion in excess of tax under U.S. tax law275,000 568,000 
Asset retirement obligation accrued for books but not for tax under U.S. tax law1,084,000 959,000 
Asset retirement obligation accrued for books but not for tax under Canadian tax law2,461,000 2,120,000 
Other liabilities accrued for books but not for tax under U.S. tax law612,000 634,000 
Foreign currency loss under U.S. tax law68,000 102,000 
Foreign currency loss under Canadian tax law81,000 124,000 
Other116,000 278,000 
Total gross deferred income tax assets17,258,000 16,016,000 
Less valuation allowance(12,439,000)(12,608,000)
Net deferred income tax assets4,819,000 3,408,000 
Deferred income tax liabilities:  
Property and equipment accumulated tax depreciation and depletion in excess of book under Canadian tax law(926,000)(280,000)
Book basis of investment in land development partnerships in excess of tax basis under U.S. tax law(133,000)(545,000)
Book basis of investment in land development partnerships in excess of tax basis under U.S. state non-unitary tax law(40,000)(166,000)
U.S. oil and gas property and equipment accumulated tax depreciation and depletion in excess of book under U.S. tax law(906,000)(121,000)
U.S. oil and gas property and equipment accumulated tax depreciation and depletion in excess of book under U.S. state tax law(19,000)(23,000)
U.S. tax law impact of foreign branch deferred tax asset under Canadian tax law(1,655,000)(1,465,000)
Retirement plan asset accrued for books but not for tax under U.S. tax law(939,000)(711,000)
Other(259,000)(285,000)
Total deferred income tax liabilities(4,877,000)(3,596,000)
Net deferred income tax liability$(58,000)$(188,000)
Reported as:
Deferred income tax assets — 
Deferred income tax liabilities(58,000)(188,000)
Net deferred income tax liability$(58,000)$(188,000)
Schedule of unrecognized tax benefits
Below are the changes in unrecognized tax benefits.
 Year ended September 30,
 20232022
Balance at beginning of year$62,000 $— 
Effect of tax positions taken in prior years 60,000 
Accrued interest related to tax positions taken 2,000 
Balance at end of year$62,000 $62,000 
Summary of tax years, by jurisdiction, that remain subject to examination by taxing authorities
Included below is a summary of the tax years, by jurisdiction, that remain subject to examination by taxing authorities at September 30, 2023:
JurisdictionFiscal Years Open
U.S. federal2020 – 2022
Various U.S. states2020 – 2022
Canada federal2016 – 2022
Various Canadian provinces2016 – 2022