CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,671	$ 4,295
Accounts receivable, net	39,534	32,242
Assets from derivative contracts	672	8,559
Prepaids and other	2,591	2,740
Total current assets	44,468	47,836
Oil and natural gas properties (full cost method):
Evaluated	530,499	509,274
Unevaluated	75,880	75,494
Gross oil and natural gas properties	606,379	584,768
Less - accumulated depletion	(305,505)	(295,163)
Net oil and natural gas properties	300,874	289,605
Other operating property and equipment:
Other operating property and equipment	3,524	3,535
Less - accumulated depreciation	(1,257)	(1,149)
Net other operating property and equipment	2,267	2,386
Other noncurrent assets:
Assets from derivative contracts	828	4,009
Operating lease right of use assets	195	310
Other assets	1,967	2,351
Total assets	350,599	346,497
Current liabilities:
Accounts payable and accrued liabilities	74,073	58,928
Liabilities from derivative contracts	42,371	22,125
Current portion of long-term debt	2,123	1,720
Operating lease liabilities	195	403
Total current liabilities	118,762	83,176
Long-term debt	155,086	158,489
Other noncurrent liabilities:
Liabilities from derivative contracts	9,029	4,291
Asset retirement obligations	10,711	10,583
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock: 100,000,000 shares of $0.0001 par value authorized;16,267,157 and 16,203,979 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively	2	2
Additional paid-in capital	330,551	330,123
Retained earnings (accumulated deficit)	(273,542)	(240,167)
Total stockholders' equity	57,011	89,958
Total liabilities and stockholders' equity	$ 350,599	$ 346,497

Amount of accumulated depletion, and impairment of oil and gas property carried under the full cost method.

No definition available.

Name:	batl_OilAndGasPropertyFullCostMethodAccumulatedDepletionAndImpairment
Namespace Prefix:	batl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.