Report says “it is not clear how” young Emin Mammadyarov could pay huge sums for luxury units.
Sceptics say the roundup is a show meant to create the illusion of fighting corruption even as higher-level officials remain untouched.
Move said to affect 7.3bn manats ($4.3bn) of deposits and protect interests of 8.3mn people. Economist claims woes rooted in systemic problems.
Extent of OPEC+ output restrictions drawn up to tackle price crisis leaves Baku with little choice but to include energy major in reductions.
Oil prices fell to less than zero for the first time in history as producers ran out of places to store crude on April 20.