(8) any extension, renewal, refinancing, refunding or replacement, or successive extensions, renewals, refinancing, refunding or replacements, of liens, in whole or in part, referred to in clauses (1) through (7), inclusive, above; provided, however, that any such extension, renewal, refinancing, refunding or replacement lien shall be limited to the property or assets covered by the lien extended, renewed, refinanced, refunded or replaced and that the obligations secured by any such extension, renewal, refinancing, refunding or replacement lien shall be in an amount not greater than the amount of the obligations secured by the lien extended, renewed, refinanced, refunded or replaced and any expenses of ours and our Subsidiaries, including any premium, incurred in connection with such extension, renewal, refinancing, refunding or replacement; or
(9) any lien resulting from the deposit of moneys or evidence of indebtedness in trust for the purpose of defeasing any of our Debt or Debt of any Subsidiary.
Notwithstanding the foregoing, under the senior indenture, we may, and may permit any Subsidiary to, create, assume, incur, or suffer to exist any lien upon any Principal Property to secure our Debt or the Debt of any other Person, other than the senior debt securities, that is not excepted by clauses (1) through (9), inclusive, above without securing the senior debt securities issued under the senior indenture; provided that the aggregate principal amount of all Debt then outstanding secured by such lien and all similar liens, together with all Attributable Indebtedness, as defined below, from Sale-Leaseback Transactions (excluding Sale-Leaseback Transactions permitted by clauses (1) through (4), inclusive, of the first paragraph of the restriction on sale-leasebacks covenant described below) does not exceed 10% of Consolidated Net Tangible Assets, as defined below. (Section 1005 of the senior indenture)
“Permitted Liens” means:
(1) liens upon rights-of-way for pipeline purposes;
(2) any statutory or governmental lien or lien arising by operation of law, or any mechanics’, repairmen’s, materialmen’s, suppliers’, carriers’, landlords’, warehousemen’s or similar lien incurred in the ordinary course of business which is not yet due or which is being contested in good faith by appropriate proceedings and any undetermined lien which is incidental to construction, development, improvement or repair;
(3) the right reserved to, or vested in, any municipality or public authority by the terms of any right, power, franchise, grant, license, permit or by any provision of law, to purchase or recapture or to designate a purchaser of, any property;
(4) liens of taxes and assessments which are (A) for the then current year, (B) not at the time delinquent, or (C) delinquent but the validity of which is being contested at the time by us or any Subsidiary in good faith;
(5) liens of, or to secure performance of, leases, other than capital leases;
(6) any lien upon, or deposits of, any assets in favor of any surety company or clerk of court for the purpose of obtaining indemnity or stay of judicial proceedings;
(7) any lien upon property or assets acquired or sold by us or any Subsidiary resulting from the exercise of any rights arising out of defaults on receivables;
(8) any lien incurred in the ordinary course of business in connection with workmen’s compensation, unemployment insurance, temporary disability, social security, retiree health or similar laws or regulations or to secure obligations imposed by statute or governmental regulations;
(9) any lien in favor of us or any Subsidiary;
(10) any lien in favor of the United States or any state thereof, or any department, agency or instrumentality or political subdivision of the United States or any state thereof, to secure partial, progress, advance, or other payments pursuant to any contract or statute, or any Debt incurred by us or any Subsidiary for the purpose of financing all or any part of the purchase price of, or the cost of constructing, developing, repairing or improving, the property or assets subject to such lien;
(11) any lien securing industrial development, pollution control or similar revenue bonds;