BEIRUT, Lebanon — King Salman of Saudi Arabia rescinded salary cuts for ministers and restored financial perks for public sector workers in a series of royal decrees late Saturday.

He also promoted two of his own sons to important positions, naming Prince Khaled bin Salman ambassador to Washington and Prince Abdulaziz bin Salman state minister for energy affairs.

The decrees, released through state news media, are a new step in the Saudi leadership’s efforts to adjust the kingdom’s finances, which have been undermined by low oil prices.

In seeking to stabilize the country’s budget, the rulers have had to balance the need to reduce spending with the desire to maintain the support of a population used to generous subsidies and benefits.