limits. During 2014, the company purchased 41.5 million common shares for $5.0 billion. From the inception of the program through 2014, the company had purchased 180.9 million shares for $20.0 billion. Given the change in market conditions, the company is suspending the share repurchase program for 2015.

Capital and Exploratory Expenditures

Capital and exploratory expenditures by business segment for 2014, 2013 and 2012 are as follows:

Total expenditures for 2014 were $40.3 billion, including $3.5 billion for the company’s share of equity-affiliate expenditures, which did not require cash outlays by the company. In 2013 and 2012, expenditures were $41.9 billion and $34.2 billion, respectively, including the company’s share of affiliates’ expenditures of $2.7 billion and $2.1 billion, respectively. The increase in expenditures between 2013 and 2012 included approximately $4 billion for major resource acquisitions in Argentina, Australia, the Permian Basin and the Kurdistan Region of Iraq, along with the additional acreage in the Duvernay Shale and interests in the Kitimat LNG Project. In addition, work progressed on a number of major capital projects, particularly two Australian LNG projects and two deepwater Gulf of Mexico projects.

Of the $40.3 billion of expenditures in 2014, 92 percent, or $37.1 billion, was related to upstream activities. Approximately, 90 percent was expended for upstream operations in 2013 and 2012. International upstream accounted for 76 percent of the worldwide upstream investment in 2014, 78 percent in 2013 and 72 percent in 2012.

The company estimates that 2015 capital and exploratory expenditures will be $35.0 billion, including $4.0 billion of spending by affiliates. This planned reduction, compared to 2014 expenditures, is in large part a response to current market conditions. Approximately 90 percent of the total, or $31.6 billion, is budgeted for exploration and production activities. Approximately $23.4 billion, or 74 percent, of this amount is for projects outside the United States. Spending in 2015 is primarily focused on major development projects in Angola, Argentina, Australia, Canada, Kazakhstan, Nigeria, Republic of the Congo, Russia, the United Kingdom and the U.S. Also included is funding for enhancing recovery and mitigating natural field declines for currently-producing assets, development of shale and tight resources, and focused exploration and appraisal activities. The company will continue to monitor crude oil market conditions, and will further modify spending plans, as needed.

Worldwide downstream spending in 2015 is estimated at $2.8 billion, with $2.0 billion for projects in the United States. About half of these investments are expected to be funded by CPChem for petrochemicals projects in the United States. Additional capital outlays include projects at U.S. and international refineries.

Investments in technology companies and other corporate businesses in 2015 are budgeted at $0.6 billion.

Noncontrolling Interests The company had noncontrolling interests of $1.2 billion at December 31, 2014 compared to $1.3 billion at year-end 2013. Distributions to noncontrolling interests