Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Our top 10 customers for the second quarter of 2015 as a percentage of revenue were AT&T with 17%, DIRECTV was 12%, Momentum Midstream was 9%, Berkshire Hathaway Energy, Plains All-American Pipeline, Duke Energy and Wisconsin Energy were 3% each, and Energy Transfer, Sprint and CNRL were each at 2% of total revenue.

Answer: owned_by: DIRECTV, at