According to various sources, various American companies – such as Exxon Mobil or Chevron -- are interested in gaining stakes as well, presumably by acquiring the percentages of the Bulgarian and Greek companies.
Prema raznim izvorima, i nekoliko američkih kompanija, poput Ekson Mobila i Ševrona, zainteresovano je za kupovinu akcija, verovatno preko otkupa procenata od bugarskih i grčkih kompanija.