Gungunum's two successors, Abisare (c. 1905-1894 BC) and Sumuel (c. 1894-1865 BC), both took steps to cut Isin completely off from access to canals. Isin quickly lost political and economic influence.

Larsa grew powerful, but never accumulated a large territory. At its peak under king Rim-Sin I (c. 1822-1763 BC), Larsa controlled about 10-15 other city-states. In the latter half of this period the city of Mashkan-shapir