CSI COMPRESSCO LP CSI COMPRESSCO FINANCE INC. AND EACH OF THE GUARANTORS PARTY HERETO 10.000%/10.750% SENIOR SECURED SECOND LIEN NOTES DUE 2026 INDENTURE Dated as of June 12, 2020 U.S. BANK NATIONAL ASSOCIATION, as Trustee U.S. BANK NATIONAL...