CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,458	$ 4,295
Accounts receivable, net	37,098	32,242
Assets from derivative contracts	1,280	8,559
Prepaids and other	2,475	2,740
Total current assets	42,311	47,836
Oil and natural gas properties (full cost method):
Evaluated	544,418	509,274
Unevaluated	75,822	75,494
Gross oil and natural gas properties	620,240	584,768
Less - accumulated depletion	(316,519)	(295,163)
Net oil and natural gas properties	303,721	289,605
Other operating property and equipment:
Other operating property and equipment	3,367	3,535
Less - accumulated depreciation	(1,206)	(1,149)
Net other operating property and equipment	2,161	2,386
Other noncurrent assets:
Assets from derivative contracts	563	4,009
Operating lease right of use assets	78	310
Other assets	2,903	2,351
Total assets	351,737	346,497
Current liabilities:
Accounts payable and accrued liabilities	65,297	58,928
Liabilities from derivative contracts	71,443	22,125
Current portion of long-term debt	2,209	1,720
Operating lease liabilities	78	403
Total current liabilities	139,027	83,176
Long-term debt	163,000	158,489
Other noncurrent liabilities:
Liabilities from derivative contracts	15,117	4,291
Asset retirement obligations	10,945	10,583
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock: 100,000,000 shares of $0.0001 par value authorized;16,268,037 and 16,203,979 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively	2	2
Additional paid-in capital	331,117	330,123
Retained earnings (accumulated deficit)	(307,471)	(240,167)
Total stockholders' equity	23,648	89,958
Total liabilities and stockholders' equity	$ 351,737	$ 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.