ONEOK Partners Financial Highlights

CANADIAN VALLEY

Natural Gas Processing Plant
Oklahoma

ONEOK Partners, L.P. (pronounced ONE-OAK) (NYSE: OKS) is one of the largest publicly traded master limited partnerships in the United States and owns one of the nation’s premiere natural gas liquids (NGL) systems, connecting NGL supply in the Mid-Continent, Permian and Rocky Mountain regions with key market centers and is a leader in the gathering, processing, storage and transportation of natural gas in the U.S. Its general partner is a wholly owned subsidiary of ONEOK, Inc. (NYSE: OKE), a pure-play publicly traded general partner, which owns 41.2 percent of the overall partnership interest, as of Dec. 31, 2016.

ONEOK Partners Financial highlights

Year ended Dec. 31 2016 2015 2014

Year ended Dec. 31


Consolidated financial information (millions of dollars)
Operating income 2016 - $1,316.1 2015 - $998.1 2014 - $1,148.8
Net income attributable to ONEOK Partners, L.P. 2016 - $1,066.8 2015 - $589.5 2014 - $910.3
Total assets 2016 - $15,469.3 2015 - $14,927.6 2014 - $14,600.4
Capital expenditures 2016 - $621.7 2015 - $1,186.1 2014 - $1,746.0

Common unit data
Common units outstanding 2016 - 212,837,980 2015 - 212,837,980 2014 - 180,826,973
Class B units outstanding 2016 - 72,988,252 2015 - 72,988,252 2014 - 72,988,252
Total units outstanding 2016 - 285,826,232 2015 - 285,826,232 2014 - 253,815,225
Distributions declared per limited partner unit†† 2016 - $3.16 2015 - $3.16 2014 - $3.07

Market price range
High 2016 - $46.46 2015 - $46.05 2014 - $59.43
Low 2016 - $22.20 2015 - $22.73 2014 - $38.23
Year-end 2016 - $43.01 2015 - $30.13 2014 - $39.63

††Distributions declared for the quarter and paid in the following quarter.