Earnings Per Share (Notes)

12 Months Ended

Dec. 31, 2015

A reconciliation of the components of basic and diluted shares used in the EPS calculation follows:



	Year Ended December 31,
	2015	2014	2013
	(in millions)
Weighted-average basic common shares outstanding	176.1	175.8	175.4
Potential number of shares issuable under the Company's LTSIP	0.2	0.3	0.6
Weighted-average diluted common shares outstanding	176.3	176.1	176.0

In the past three years, Questar had the ability to issue shares under the terms of the Dividend Reinvestment and Stock Purchase Plan, 401(k) Retirement Income Plan (see Note 14) and LTSIP (see Note 13).

Dividend Reinvestment and Stock Purchase Plan

The Dividend Reinvestment and Stock Purchase Plan allows shareholders to reinvest dividends or invest additional funds in Questar common stock. The Company can issue new shares or buy shares in the open market to meet shareholders' purchase requests. The Company bought shares in the open market to satisfy shareholders' purchases in 2015, 2014, and 2013 and no shares were issued. At December 31, 2015, there were 19,872,261 shares reserved and authorized for future issuance.