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Exhibit 23.1

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Deloitte & Touche LLP

Suite 4500

1111 Bagby Street

Houston, TX 77002-2591
USA

Tel: +1 713-982-2000

Fax: +1 713-982-2001

www.deloitte.com

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated March 23, 2026, relating to the financial statements of Battalion Oil Corporation, appearing in the Annual Report on Form 10-K of Battalion Oil Corporation for the year ended December 31, 2025.

/s/ Deloitte & Touche LLP

Houston, Texas
April 20, 2026