Exhibit 21.1

SIGNIFICANT SUBSIDIARIES OF BKV CORPORATION
As of December 31, 2024

The following subsidiaries are deemed “significant subsidiaries” pursuant to Item 601(b)(21) of Regulation S-K:

Name State or Other Jurisdiction of Incorporation or Organization
BKV Barnett, LLC Delaware
BKV Chelsea, LLC Delaware
BKV dCarbon Barnett Zero, LLC Delaware
BKV dCarbon High West, LLC Delaware
BKV dCarbon Las Tiendas, LLC Delaware
BKV dCarbon Temple, LLC Delaware
BKV dCarbon Ventures, LLC Delaware
BKV Midstream, LLC Delaware
BKV North Texas, LLC Delaware
BKV Operating, LLC Delaware
BKV Upstream Midstream, LLC Delaware
BKV-BPP Cotton Cove, LLC Delaware
BKVerde, LLC Delaware
High West Sequestration, LLC Louisiana
Kalnin Ventures LLC Colorado






(1) Pursuant to Item 601(b) (21) of Regulation S-K, registrant has omitted the names of subsidiaries, which considered in the aggregate as a single subsidiary, would not constitute a “significant subsidiary” (as defined under Rule 1-02(w) of Regulation S-X) as of December 31, 2024.