1.   But Italy is heavily dependant on Libyan petroleum and gas, and relations, while tested at times, have endured.

2.   Italy is heavily dependant on Libyan petroleum and gas, and relations, while tested at times, have endured.

3.   Italy is heavily dependent on Libyan petroleum and gas, and relations between the two countries, while tested at times, have endured.

4.   Italy is heavily dependent on Libyan petroleum and gas, and relations, while tested at times, have endured.

5.   They were strengthened last year, but a full embargo on oil sales has been resisted by Spain and Italy, buyers of Libyan petroleum.