[MHalblaub]

"If it is a KC-130 then that perspective looks spot on."

The Saudi Arabian KC-130 are possible but not the best aircraft for this job. The KC-130 can't reach the cruise altitude for jets.

There are also about 20 KC-135 able to accept wing mounted refueling pods. A boom adapter looks differently.

According to the drogue it could be an A330-MRTT:
http://leehamnews.files.wordpress.com/2009/11/mrtt_2.jpg (bigger)

The United Arab Emirates have 1 operational A330-MRTT, the RAF 9 Voyagers and Australian RAAF has 5 operational KC-30A.

Very likely the picture was taken from an Australian KC-30A.

[TalonDJ]

The USMC also uses a lot of KC-130s. They do plenty of refueling jets. Many jets, particularly loitering attack aircraft or jammers, might not be at 40,000 feet when the need a drink. It does not make sense to climb up there when you are low on gas.

Oh course the picture could be from almost any plane with wing mounted drogue pods.