A natural gas flare on an oil well pad burns as the sun sets outside Watford City, North Dakota January 21, 2016. REUTERS/Andrew Cullen

Regina King poses backstage with her award for Outstanding Supporting Actress In A Limited Series Or Movie for "American Crime" at the 68th Primetime Emmy Awards in Los Angeles, California U.S., September 18, 2016. REUTERS/Mario Anzuoni

Bank of Japan (BOJ) Governor Haruhiko Kuroda attends a news conference in Tokyo, Japan, June 16, 2016. REUTERS/Thomas Peter

Actress Emilia Clarke from the HBO series "Game of Thrones" arrives at the 68th Primetime Emmy Awards in Los Angeles, California U.S., September 18, 2016. REUTERS/Lucy Nicholson

Actor Kit Harington from the HBO series "Game of Thrones" arrives at the 68th Primetime Emmy Awards in Los Angeles, California U.S., September 18, 2016. REUTERS/Lucy Nicholson

Actress Julia Louis-Dreyfus poses backstage with her awards for Outstanding Comedy Series and Outstanding Lead Actress In A Comedy Series for her role in HBO's "Veep" at the 68th Primetime Emmy Awards in Los Angeles, California U.S., September 18, 2016. REUTERS/Mike Blake

Philippines Environment and Natural Resources (DENR) Secretary Regina Lopez answers a question during a news conference at the department's headquarters in Quezon city, metro Manila, Philippines August 11, 2016. REUTERS/Romeo Ranoco

Hong Kong's central financial district's (from L to R) Bank of China Tower, Cheung Kong Centre, HSBC headquarters and Standard Chartered Bank are pictured lighted up before Earth Hour March 28, 2015. REUTERS/Tyrone Siu