customary covenants for credit facilities of this type. As of June 30, 2021 and December 31, 2020, we were in compliance with all covenants as required by our Senior Credit Facility.
We are a holding company with no independent assets or operations. The aggregate assets, liabilities, earnings and equity of the subsidiary guarantors as defined in our Senior Credit Facility are substantially equivalent to our assets, liabilities, earnings and equity on a consolidated basis. The subsidiary guarantors are, directly or indirectly, our wholly owned subsidiaries and the guarantees of the subsidiary guarantors are full, unconditional and joint and several. All of our current direct and indirect subsidiaries, other than subsidiaries which we have designated as unrestricted subsidiaries, are guarantors under our Senior Credit Facility and all of our future direct and indirect subsidiaries, subject to certain exceptions will be guarantors under our Senior Credit Facility.
For further information concerning our Senior Credit Facility, see Note 4 “Long-term Debt” to each of our unaudited and audited consolidated financial statements incorporated by reference into this offering memorandum. For estimates of future principal and interest payments under our Senior Credit Facility at December 31, 2020, see “Tabular Disclosure of Contractual Obligations as of December 31, 2020” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” incorporated by reference into this offering memorandum. The timing and amount of any actual future principal or interest payments thereon may differ materially therefrom based on, among other things, amounts outstanding and interest rates in effect at the applicable time.
5.875% Senior Notes due 2026
As of June 30, 2021, we had $700.0 million of our existing 2026 notes outstanding. As of June 30, 2021 and December 31, 2020, the coupon interest rate and the yield on the existing 2026 notes were 5.875% and 5.398%, respectively. As of June 30, 2021 and December 31, 2020, we had a deferred loan cost balance, net of accumulated amortization, of $6 million and $6 million, respectively, related to our existing 2026 notes.
We may redeem some or all of the existing 2026 notes at specified redemption prices. If we sell certain of our assets or experience specific kinds of changes of control, we must offer to repurchase the 2026 notes. The 2026 notes mature on July 15, 2026. Interest on the existing 2026 notes is payable semiannually, on May 15 and November 15 of each year.
The existing 2026 notes have been fully and unconditionally guaranteed, on a joint and several basis, by all of our subsidiaries, other than subsidiaries which we have designated as unrestricted subsidiaries. As of June 30, 2021, there were no significant restrictions on the ability of our subsidiaries to distribute cash to us or to other guarantor subsidiaries. The indenture governing the existing 2026 notes includes covenants with which we must comply which are typical for borrowing transactions of their nature. As of June 30, 2021 and December 31, 2020, we were in compliance with all covenants as required by indenture governing our existing 2026 notes.
7.0% Senior Notes due 2027
As of June 30, 2021, we had $750.0 million of our existing 2027 notes outstanding. As of June 30, 2021 and December 31, 2020, the coupon interest rate and the yield on the existing 2027 notes were 7.0%. As of June 30, 2021 and December 31, 2020, we had a deferred loan cost balance, net of accumulated amortization, of $9 million and $10 million, respectively, related to our existing 2027 notes.
We may redeem some or all of the existing 2027 notes at specified redemption prices. If we sell certain of our assets or experience specific kinds of changes of control, we must offer to repurchase the existing 2027 notes. The existing 2027 notes mature on May 15, 2027. Interest on the existing 2027 notes is payable semiannually, on January 15 and July 15 of each year.
The existing 2027 notes have been fully and unconditionally guaranteed, on a joint and several basis, by all of our subsidiaries, other than subsidiaries which we have designated as unrestricted subsidiaries. As
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