The State Oil Fund of the Republic of Azerbaijan ranks among the highest in the Linaburg-Maduell Transparency Index.

The Linaburg-Maduell Transparency Index was developed at the Sovereign Wealth Fund Institute (http://www.swfinstitute.org) by Carl Linaburg and Michael Maduell. The Linaburg-Maduell transparency index is a method of rating transparency in respect to sovereign wealth funds (SWF). This index is based on ten essential principles and each principle adds one point of transparency to the index rating.

SOFAZ and the sovereign wealth funds of Chile, UAE (Mubadala), Singapore (Temasek), Ireland (NPRF), USA (Alaska), Norway (GPF), New Zealand took first place with 10 points among 45 SWF.