Form: 424B5

Prospectus [Rule 424(b)(5)]

March 12, 2026

S-3 424B5 EX-FILING FEES 333-290676 0001838406 BKV Corp N/A N/A true true true true true true true true true The prospectus is not a final prospectus for the related offering. 0001838406 2026-03-11 2026-03-11 0001838406 1 2026-03-11 2026-03-11 0001838406 2 2026-03-11 2026-03-11 0001838406 3 2026-03-11 2026-03-11 0001838406 4 2026-03-11 2026-03-11 0001838406 5 2026-03-11 2026-03-11 0001838406 6 2026-03-11 2026-03-11 0001838406 7 2026-03-11 2026-03-11 0001838406 8 2026-03-11 2026-03-11 0001838406 9 2026-03-11 2026-03-11 iso4217:USD xbrli:pure xbrli:shares

Calculation of Filing Fee Tables

S-3

BKV Corp

Table 1: Newly Registered and Carry Forward Securities ☑Not Applicable

Security Type

Security Class Title

Fee Calculation or Carry Forward Rule

Amount Registered

Proposed Maximum Offering Price Per Unit

Maximum Aggregate Offering Price

Fee Rate

Amount of Registration Fee

Carry Forward Form Type

Carry Forward File Number

Carry Forward Initial Effective Date

Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward

Newly Registered Securities
Fees to be Paid N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Fees Previously Paid N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Carry Forward Securities
Carry Forward Securities N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

Total Offering Amounts:

$ 0.00

$ 0.00

Total Fees Previously Paid:

$ 0.00

Total Fee Offsets:

$ 0.00

Net Fee Due:

$ 0.00

Table 2: Fee Offset Claims and Sources ☑Not Applicable
Registrant or Filer Name Form or Filing Type File Number Initial Filing Date Filing Date Fee Offset Claimed Security Type Associated with Fee Offset Claimed Security Title Associated with Fee Offset Claimed Unsold Securities Associated with Fee Offset Claimed Unsold Aggregate Offering Amount Associated with Fee Offset Claimed Fee Paid with Fee Offset Source
Rules 457(b) and 0-11(a)(2)
Fee Offset Claims N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Fee Offset Sources N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Rule 457(p)
Fee Offset Claims N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Fee Offset Sources N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Table 3: Combined Prospectuses ☐Not Applicable

Security Type

Security Class Title

Amount of Securities Previously Registered

Maximum Aggregate Offering Price of Securities Previously Registered

Form Type

File Number

Initial Effective Date

Equity Common stock, par value $0.01 per share S-3 333-290676 12/01/2025
Equity Preferred stock S-3 333-290676 12/01/2025
Debt Debt Securities S-3 333-290676 12/01/2025
Other Guarantees of Debt Securities S-3 333-290676 12/01/2025
Other Rights S-3 333-290676 12/01/2025
Other Warrants S-3 333-290676 12/01/2025
Other Units S-3 333-290676 12/01/2025
1 Other Unallocated (Universal) Shelf $ 820,600,000.00 S-3 333-290676 12/01/2025
2 Equity Common Stock, par value $0.01 per share 4,142,089 S-3 333-292408 12/23/2025

Prospectus Note

1

Pursuant to Rule 429 under the Securities Act of 1933, as amended (the "Securities Act"), the prospectus, to which this exhibit is attached, is a combined prospectus (the "Combined Prospectus") relating to (i) the registration statement on Form S-3 (File No. 333-290676), originally filed with the Securities and Exchange Commission (the "SEC") on October 1, 2025 and subsequently declared effective on December 1, 2025 (as amended, the "Primary Registration Statement"), relating to such indeterminate number of common stock, par value $0.01 per share (the "Common Stock"), preferred stock, debt securities, guarantees of debt securities, rights, warrants and units of the registrant as shall have an aggregate initial offering price not to exceed US $1,000,000,000, of which US $820,600,000 remains unsold under the Primary Registration Statement and (ii) the registration statement on Form S-3 (File No. 333-292408), which became automatically effective upon filing on December 23, 2025 (the "Secondary Registration Statement"), relating to an aggregate of 5,233,957 shares of Common Stock, of which 4,142,089 shares remain unsold under the Secondary Registration Statement. This Combined Prospectus combines 7,003,813 shares of Common Stock from the Primary Registration Statement with 4,142,089 shares of Common Stock from the Secondary Registration Statement to enable an aggregate of 11,145,902 shares of Common Stock to be offered. The aggregate offering amount under the Primary Registration Statement will be up to $189,102,960.45, and the offering amount under the Secondary Registration Statement will be $111,836,403.00.

2

Pursuant to Rule 429 under the Securities Act of 1933, as amended (the "Securities Act"), the prospectus, to which this exhibit is attached, is a combined prospectus (the "Combined Prospectus") relating to (i) the registration statement on Form S-3 (File No. 333-290676), originally filed with the Securities and Exchange Commission (the "SEC") on October 1, 2025 and subsequently declared effective on December 1, 2025 (as amended, the "Primary Registration Statement"), relating to such indeterminate number of common stock, par value $0.01 per share (the "Common Stock"), preferred stock, debt securities, guarantees of debt securities, rights, warrants and units of the registrant as shall have an aggregate initial offering price not to exceed US $1,000,000,000, of which US $820,600,000 remains unsold under the Primary Registration Statement and (ii) the registration statement on Form S-3 (File No. 333-292408), which became automatically effective upon filing on December 23, 2025 (the "Secondary Registration Statement"), relating to an aggregate of 5,233,957 shares of Common Stock, of which 4,142,089 shares remain unsold under the Secondary Registration Statement. This Combined Prospectus combines 7,003,813 shares of Common Stock from the Primary Registration Statement with 4,142,089 shares of Common Stock from the Secondary Registration Statement to enable an aggregate of 11,145,902 shares of Common Stock to be offered. The aggregate offering amount under the Primary Registration Statement will be up to $189,102,960.45, and the offering amount under the Secondary Registration Statement will be $111,836,403.00.