Atlas Air Worldwide Holdings Inc. said Thursday it would provide air cargo services to Amazon.com Inc., further building out the online retailer's delivery network.

Atlas Air's shares rose 20% to $46 in premarket trading as Amazon edged up 0.6% to $675.

The agreement includes operation of 20 Boeing Co. 767 freighters for Amazon by Atlas subsidiary Atlas Air Inc. The operation of the freighters with crew, maintenance and insurance will last for seven years. Atlas Air said Amazon agreed to a so-called dry leasing by its Titan Aviation leasing unit, which have a term of 10 years. In a dry lease agreement, only the plane is given.

Dave Clark, Amazon's senior vice president of world-wide operations, said the agreement would "support package delivery to the rapidly growing number of Prime members who love ultrafast delivery."

The agreement is expected to begin in the second half of the year and continue to ramp up through 2018.

In March, Amazon said it planned to shuttle merchandise around the U.S. using as many as 20 of Boeing's 767 aircraft, which it will lease from Air Transport Services Group Inc. News of that deal sent the air-cargo transportation company's shares soaring as much as 24% at the time.

The Seattle retailer has taken steps to reduce its reliance on carriers such as United Parcel Service Inc. and FedEx Corp. It has built a ground network of couriers and new warehouses near or within urban centers for faster and cheaper delivery.

The Wall Street Journal r eported in December that Amazon was seeking aircraft from companies including Atlas Air and Air Transport Services.

Atlas Air, which reported better-than-expected earnings on Thursday, said the partnership with Amazon would add to its earnings and cash flows over time.

In the first quarter, Atlas said it earned $471,000, or two cents a share, compared with a year-earlier profit of $29.2 million, or $1.17 a share. Excluding items, Atlas Air said it earned 31 cents a share. Analysts polled by Thomson Reuters projected 25 cents a share.

Revenue fell to $418.6 million from $444.8 million. Analysts expected $420 million.

Write to Joshua Jamerson at joshua.jamerson@wsj.com

(END) Dow Jones Newswires

May 05, 2016 10:05 ET (14:05 GMT)

Copyright (c) 2016 Dow Jones & Company, Inc.
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