CREDIT FACILITY	12 Months Ended
Dec. 31, 2012
CREDIT FACILITY [Abstract]
CREDIT FACILITY	CREDIT FACILITY Borrowings under our revolving credit facility are used to fund capital contributions to NuStar Energy to maintain our 2% general partner interest as NuStar Energy issues additional units and to meet other liquidity and capital resource requirements. Our 364-day revolving credit agreement dated June 29, 2012, matures on June 28, 2013 and has a borrowing capacity of up to $40.0 million, of which, up to $10.0 million may be available for letters of credit (the 2012 Credit Facility). As of December 31, 2012, we had outstanding borrowings of $20.0 million, and availability of $20.0 million and $10.0 million for borrowings and letters of credit, respectively, under the 2012 Credit Facility. Interest on the 2012 Credit Facility is based upon, at our option, either an alternative base rate plus 0.75% or a LIBOR-based rate plus 1.75%, which was 2.0% as of December 31, 2012. Our obligations under the 2012 Credit Facility are unsecured. The 2012 Credit Facility contains customary covenants and provisions including limitations on indebtedness, liens, dispositions of property, mergers and asset transfers. The terms of the 2012 Credit Facility require NuStar Energy to maintain, as of the end of each rolling period, consisting of any period of four consecutive quarters, a consolidated debt coverage ratio not to exceed 5.0-to-1.0. If NuStar Energy consummates an acquisition for an aggregate net consideration of at least $50.0 million, the maximum consolidated debt coverage ratio will increase to 5.5-to-1.0 for two rolling periods. As of December 31, 2012, NuStar Energy's consolidated debt coverage ratio could not exceed 5.5-to-1.0, as a result of the TexStar Asset Acquisition. NuStar Energy's consolidated debt coverage ratio was 5.0x as of December 31, 2012. We are also required to receive cash distributions of at least $50.0 million in respect of our ownership interests in NuStar Energy for the preceding four fiscal quarters ending on the last day of each fiscal quarter. Our management believes that we are in compliance with the covenants of the 2012 Credit Facility as of December 31, 2012. On July 15, 2010, we entered into a 364-day revolving credit facility that we amended on July 14, 2011 to extend the maturity date to July 12, 2012 (2010 Credit Facility). The 2010 Credit Facility has a borrowing capacity of up to $30.0 million, of which up to $10.0 million may be available for letters of credit. Interest on the 2010 Credit Facility, as amended, is based upon, at our option, either an alternative base rate plus 0.75% or a LIBOR-based rate plus 1.75%. The weighted average interest rate related to borrowings under the 2010 Credit Facility for the year ended December 31, 2011 was 2.6%. We borrowed $21.0 million under the 2012 Credit Facility during the year ended December 31, 2012, mainly to fund our $7.1 million in contributions to NuStar Energy to maintain our 2% general partner interest following its issuance of common units in 2012. During the year ended December 31, 2012, we repaid $17.5 million under the 2012 Credit Facility. The weighted-average interest rate related to borrowings under the 2012 Credit Facility for the year ended December 31, 2012 was 2.1%.

CREDIT FACILITY

Borrowings under our revolving credit facility are used to fund capital contributions to NuStar Energy to maintain our 2% general partner interest as NuStar Energy issues additional units and to meet other liquidity and capital resource requirements. Our 364-day revolving credit agreement dated June 29, 2012, matures on June 28, 2013 and has a borrowing capacity of up to $40.0 million, of which, up to $10.0 million may be available for letters of credit (the 2012 Credit Facility). As of December 31, 2012, we had outstanding borrowings of $20.0 million, and availability of $20.0 million and $10.0 million for borrowings and letters of credit, respectively, under the 2012 Credit Facility. Interest on the 2012 Credit Facility is based upon, at our option, either an alternative base rate plus 0.75% or a LIBOR-based rate plus 1.75%, which was 2.0% as of December 31, 2012. Our obligations under the 2012 Credit Facility are unsecured. The 2012 Credit Facility contains customary covenants and provisions including limitations on indebtedness, liens, dispositions of property, mergers and asset transfers.

The terms of the 2012 Credit Facility require NuStar Energy to maintain, as of the end of each rolling period, consisting of any period of four consecutive quarters, a consolidated debt coverage ratio not to exceed 5.0-to-1.0. If NuStar Energy consummates an acquisition for an aggregate net consideration of at least $50.0 million, the maximum consolidated debt coverage ratio will increase to 5.5-to-1.0 for two rolling periods. As of December 31, 2012, NuStar Energy's consolidated debt coverage ratio could not exceed 5.5-to-1.0, as a result of the TexStar Asset Acquisition. NuStar Energy's consolidated debt coverage ratio was 5.0x as of December 31, 2012. We are also required to receive cash distributions of at least $50.0 million in respect of our ownership interests in NuStar Energy for the preceding four fiscal quarters ending on the last day of each fiscal quarter. Our management believes that we are in compliance with the covenants of the 2012 Credit Facility as of December 31, 2012.

On July 15, 2010, we entered into a 364-day revolving credit facility that we amended on July 14, 2011 to extend the maturity date to July 12, 2012 (2010 Credit Facility). The 2010 Credit Facility has a borrowing capacity of up to $30.0 million, of which up to $10.0 million may be available for letters of credit. Interest on the 2010 Credit Facility, as amended, is based upon, at our option, either an alternative base rate plus 0.75% or a LIBOR-based rate plus 1.75%. The weighted average interest rate related to borrowings under the 2010 Credit Facility for the year ended December 31, 2011 was 2.6%.

We borrowed $21.0 million under the 2012 Credit Facility during the year ended December 31, 2012, mainly to fund our $7.1 million in contributions to NuStar Energy to maintain our 2% general partner interest following its issuance of common units in 2012. During the year ended December 31, 2012, we repaid $17.5 million under the 2012 Credit Facility. The weighted-average interest rate related to borrowings under the 2012 Credit Facility for the year ended December 31, 2012 was 2.1%.