SUBSEQUENT EVENTS	3 Months Ended
Mar. 31, 2017
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS Navigator Acquisition On April 11, 2017, NuStar Logistics and NuStar Energy entered into a Membership Interest Purchase and Sale Agreement (the Acquisition Agreement) with FR Navigator Holdings LLC to acquire all of the issued and outstanding limited liability company interests in Navigator Energy Services, LLC (Navigator) for approximately $1.475 billion, subject to customary adjustments at and following closing. Navigator owns and operates crude oil transportation, pipeline gathering and storage assets located in the Midland Basin of West Texas consisting of: (i) more than 500 miles of crude oil gathering and transportation pipelines with approximately 92,000 barrels per day ship-or-pay volume commitments and deliverability of approximately 412,000 barrels per day; (ii) a pipeline gathering system with more than 200 connected producer tank batteries capable of more than 400,000 barrels per day of pumping capacity covering over 500,000 dedicated acres with fixed fee contracts; and (iii) approximately 1.0 million barrels of crude oil storage capacity with 440,000 barrels contracted to third parties. NuStar Energy closed on the Navigator Acquisition on May 4, 2017 and funded the purchase price with the net proceeds of the equity and debt issuances described below. The Navigator Acquisition broadens NuStar Energy’s geographic footprint by marking its entry into the Permian Basin and complements its existing asset base. NuStar Energy believes this acquisition provides a strong growth platform that, when coupled with its assets in the Eagle Ford region, solidifies its presence in two of the most prolific basins in the United States. We amended and restated NuStar Energy’s partnership agreement in connection with NuStar Energy’s issuance of the Series B Preferred Units described below and the Navigator Acquisition to waive up to an aggregate $22.0 million of the quarterly incentive distributions payable to us for any NS common units issued from the date of the Acquisition Agreement (other than those attributable to NS common units issued under any equity compensation plan) for ten consecutive quarters, starting with the second quarter of 2017. Issuance of Common Units On April 18, 2017, NuStar Energy issued 14,375,000 common units representing limited partner interests at a price of $46.35 per unit. NuStar Energy used the net proceeds from this offering of $657.5 million, including our contribution of $13.6 million to maintain our 2% general partner interest, to fund a portion of the purchase price for the Navigator Acquisition. Beginning with the distribution earned for the second quarter of 2017, we will not receive incentive distributions with respect to these common units. We borrowed approximately $14.0 million under our revolving credit facility to fund our general partner contribution to NuStar Energy, and our common limited partner ownership interest in NuStar Energy was approximately 11% subsequent to this issuance. Issuance of 5.625% Senior Notes On April 28, 2017, NuStar Logistics issued $550.0 million of 5.625% senior notes due April 28, 2027. NuStar Energy used the net proceeds of $543.8 million from the offering to fund a portion of the purchase price for the Navigator Acquisition and to pay related fees and expenses. Issuance of Series B Preferred Units On April 28, 2017, NuStar Energy issued 15,400,000 of its Series B Preferred Units representing limited partner interests at a price of $25.00 per unit. NuStar Energy used the net proceeds of $372.2 million from the issuance of the Series B Preferred Units to fund a portion of the purchase price for the Navigator Acquisition and to pay related fees and expenses. Distributions on the Series B Preferred Units are payable out of any legally available funds, accrue and are cumulative from the date of original issuance of the Series B Preferred Units and are payable on the 15^th day of each of March, June, September and December of each year (beginning on September 15, 2017) to holders of record on the first day of each payment month. The initial distribution rate on the Series B Preferred Units to, but not including, June 15, 2022 is 7.625% per annum of the $25.00 liquidation preference per unit (equal to $1.90625 per unit per annum). On and after June 15, 2022, distributions on the Series B Preferred Units accumulate at a percentage of the $25.00 liquidation preference equal to an annual floating rate of the three-month LIBOR plus a spread of 5.643%. The Series B Preferred Units rank senior to NuStar Energy’s common units with respect to distribution rights and rights upon liquidation.

SUBSEQUENT EVENTS

Navigator Acquisition

On April 11, 2017, NuStar Logistics and NuStar Energy entered into a Membership Interest Purchase and Sale Agreement (the Acquisition Agreement) with FR Navigator Holdings LLC to acquire all of the issued and outstanding limited liability company interests in Navigator Energy Services, LLC (Navigator) for approximately $1.475 billion, subject to customary adjustments at and following closing. Navigator owns and operates crude oil transportation, pipeline gathering and storage assets located in the Midland Basin of West Texas consisting of: (i) more than 500 miles of crude oil gathering and transportation pipelines with approximately 92,000 barrels per day ship-or-pay volume commitments and deliverability of approximately 412,000 barrels per day; (ii) a pipeline gathering system with more than 200 connected producer tank batteries capable of more than 400,000 barrels per day of pumping capacity covering over 500,000 dedicated acres with fixed fee contracts; and (iii) approximately 1.0 million barrels of crude oil storage capacity with 440,000 barrels contracted to third parties.

NuStar Energy closed on the Navigator Acquisition on May 4, 2017 and funded the purchase price with the net proceeds of the equity and debt issuances described below. The Navigator Acquisition broadens NuStar Energy’s geographic footprint by marking its entry into the Permian Basin and complements its existing asset base. NuStar Energy believes this acquisition provides a strong growth platform that, when coupled with its assets in the Eagle Ford region, solidifies its presence in two of the most prolific basins in the United States.

We amended and restated NuStar Energy’s partnership agreement in connection with NuStar Energy’s issuance of the Series B Preferred Units described below and the Navigator Acquisition to waive up to an aggregate $22.0 million of the quarterly incentive distributions payable to us for any NS common units issued from the date of the Acquisition Agreement (other than those attributable to NS common units issued under any equity compensation plan) for ten consecutive quarters, starting with the second quarter of 2017.

Issuance of Common Units

On April 18, 2017, NuStar Energy issued 14,375,000 common units representing limited partner interests at a price of $46.35 per unit. NuStar Energy used the net proceeds from this offering of $657.5 million, including our contribution of $13.6 million to maintain our 2% general partner interest, to fund a portion of the purchase price for the Navigator Acquisition. Beginning with the distribution earned for the second quarter of 2017, we will not receive incentive distributions with respect to these common units. We borrowed approximately $14.0 million under our revolving credit facility to fund our general partner contribution to NuStar Energy, and our common limited partner ownership interest in NuStar Energy was approximately 11% subsequent to this issuance.

Issuance of 5.625% Senior Notes

On April 28, 2017, NuStar Logistics issued $550.0 million of 5.625% senior notes due April 28, 2027. NuStar Energy used the net proceeds of $543.8 million from the offering to fund a portion of the purchase price for the Navigator Acquisition and to pay related fees and expenses.

Issuance of Series B Preferred Units

On April 28, 2017, NuStar Energy issued 15,400,000 of its Series B Preferred Units representing limited partner interests at a price of $25.00 per unit. NuStar Energy used the net proceeds of $372.2 million from the issuance of the Series B Preferred Units to fund a portion of the purchase price for the Navigator Acquisition and to pay related fees and expenses.

Distributions on the Series B Preferred Units are payable out of any legally available funds, accrue and are cumulative from the date of original issuance of the Series B Preferred Units and are payable on the 15^th day of each of March, June, September and December of each year (beginning on September 15, 2017) to holders of record on the first day of each payment month. The initial distribution rate on the Series B Preferred Units to, but not including, June 15, 2022 is 7.625% per annum of the $25.00 liquidation preference per unit (equal to $1.90625 per unit per annum). On and after June 15, 2022, distributions on the Series B Preferred Units accumulate at a percentage of the $25.00 liquidation preference equal to an annual floating rate of the three-month LIBOR plus a spread of 5.643%. The Series B Preferred Units rank senior to NuStar Energy’s common units with respect to distribution rights and rights upon liquidation.