The Golan is what makes Israel defensible from potential attacks launched from Syria. To give it back to Syria would be a bad move and would invite the Syrians to gain prestige with Hezbollah and Hamas, thereby giving it greater influence in Lebanon and Gaza. This could be a VERY bad move for Israel.
Iran's oil exports to South Korea quadruple to 400,000 barrels a day after sanctions lift (Reuters)
from the article: Report: Syria willing to consider phased Golan pullout