FACTBOX-Foreign companies stepping away from Iran

June 28 (Reuters) - Spain's largest oil company Repsol (REP.MC: Quote) has pulled out of a contract it won with Royal Dutch Shell (RDSa.L: Quote) to develop part of the South Pars gas field in Iran, a spokesman said on Monday [ID:nLDE65R0JE].

A growing number of oil companies, trading houses and other international companies have stopped doing business with Iran this year amid a U.S. drive to isolate Tehran and international efforts to impose tougher sanctions.

Here are some of the companies:

* Repsol (REP.MC: Quote) has pulled out of a contract it won with Royal Dutch Shell (RDSa.L: Quote) to develop part of the South Pars gas field in Iran.]

-- Separately, French oil group Total (TOTF.PA: Quote) said it had suspended sales of refined products to Iran. It said in April would cease gasoline sales to Iran if the United States passed legislation to penalize fuel suppliers to Iran. Congress passed legislation last week. [ID:nnN24148251]

* Italy's oil and gas major Eni (ENI.MI: Quote) is handing the operation of Darkhovin oilfield in Iran to local partners to avoid U.S. sanctions, Eni told U.S. authorities on April 29. [ID:nLDE63S0XT]

* Russian oil major LUKOIL (LKOH.MM: Quote) will cease gasoline sales to Iran, industry sources said on April 7, following a similar decision by Royal Dutch Shell (RDSa.L: Quote) in March. LUKOIL had supplied some 250,000 to 500,000 barrels of gasoline to Iran every other month, traders said. [ID:nLDE636061]

* Malaysia's Petronas has stopped supplying gasoline to Iran, a company spokesman said on April 15. [ID:nSGE63E09V]