.

PARTNERS

K-1 Information

ONEOK Partners was a publicly traded master limited partnership (MLP) until ONEOK, Inc. (NYSE: OKE) completed the acquisition of all outstanding common units of ONEOK Partners it did not already own on June 30, 2017. Investors in MLPs receive a K-1 form during tax season, instead of a 1099, which provides information necessary for their tax return.

To learn more about MLPs, visit www.mlpassociation.org.

Schedule K-1
ONEOK Partners unitholders received a final schedule K-1 for the 2017 tax year.

A Schedule K-1 describes the unitholder's respective share of ONEOK Partners' income, gain, loss and deductions for the tax year specified. Receipt of Schedule K-1 is not proof of ownership of common units and this fact is stated on the form. For specific questions regarding the common units in the partnership you owned, please contact the brokerage firm that held your units. Registered unitholders should contact EQ Shareowner Services, the transfer agent, for inquiries.

The following information is provided for your general guidance. The information is not intended to be, nor should it be construed as, the rendering of professional or legal tax advice. The tax information discussed below is based on existing U.S. federal and state laws and regulations as interpreted by the General Partner. Before undertaking any tax filing, we strongly recommend that you refer to the appropriate federal and state income tax laws or consult with your personal tax advisor.

Schedule K-1 is the form used to provide each unitholder of a master limited partnership (MLP) with their respective tax information for a given tax year. Each year ONEOK Partners was publicly traded it was required to file a Form 1065 with the IRS which included a Schedule K-1 for each unitholder.

A Schedule K-1 is the required form for reporting a partner's share of the partnership tax items.

No. You should report the taxable income items shown on your Schedule K-1 provided to you by ONEOK Partners.

The cash you received is a return of capital and represents your share of ONEOK Partners' available cash. The amount you are required to include in your individual income tax return is your share of ONEOK Partners' taxable income and related items which are allocated based on the number of units you owned during the tax year and reported on your Schedule K-1. These amounts differ primarily due to changes in cash flow and depreciation (a non-cash expense).

2017 distributions were:

Payment Date Amount / Unit
5/15/2017 $0.79
2/14/2017 $0.79

The cash distributions you receive are a return of capital and decrease your basis in ONEOK Partners. At year-end, your basis is increased/decreased by your share of ONEOK Partners' taxable income/loss allocated to you on your Schedule K-1.

A Schedule K-1 is the required form for reporting a partner's share of the partnership tax items. If you owned common units at any time during the tax year, you will receive a Schedule K-1.

Follow the link below to be directed to an investor FAQ on the ONEOK and ONEOK Partners merger transaction.

OKE-OKS Transaction FAQ