CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,868	$ 4,295
Accounts receivable, net	40,162	32,242
Assets from derivative contracts	813	8,559
Prepaids and other	1,195	2,740
Total current assets	44,038	47,836
Oil and natural gas properties (full cost method):
Evaluated	550,522	509,274
Unevaluated	76,136	75,494
Gross oil and natural gas properties	626,658	584,768
Less - accumulated depletion	(327,233)	(295,163)
Net oil and natural gas properties	299,425	289,605
Other operating property and equipment:
Other operating property and equipment	3,106	3,535
Less - accumulated depreciation	(1,012)	(1,149)
Net other operating property and equipment	2,094	2,386
Other noncurrent assets:
Assets from derivative contracts	110	4,009
Operating lease right of use assets	811	310
Other assets	2,737	2,351
Total assets	349,215	346,497
Current liabilities:
Accounts payable and accrued liabilities	60,403	58,928
Liabilities from derivative contracts	74,287	22,125
Current portion of long-term debt	149	1,720
Operating lease liabilities	365	403
Total current liabilities	135,204	83,176
Long-term debt	155,000	158,489
Other noncurrent liabilities:
Liabilities from derivative contracts	9,536	4,291
Asset retirement obligations	11,786	10,583
Operating lease liabilities	446
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock: 100,000,000 shares of $0.0001 par value authorized;16,273,913 and 16,203,979 shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively	2	2
Additional paid-in capital	331,660	330,123
Retained earnings (accumulated deficit)	(294,419)	(240,167)
Total stockholders' equity	37,243	89,958
Total liabilities and stockholders' equity	$ 349,215	$ 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.