Nayara Energy changes payment terms for naphtha sale after EU sanctions; seeks advance payment or letter of credit.

• EU’s 18th sanctions package targets Nayara, partly owned by Rosneft, prompting revised terms for a 33,000-35,000 ton cargo.
• The company also issued a jet fuel tender, but may revise terms; uncertainty remains about its award status.
• Rosneft, holding 49.13% in Nayara, calls sanctions unjustified; payment security now key for spot fuel sales.