The pair's relationship has often been frosty, but they exchanged warm words as they met for what may be the last time before Obama leaves office in January.
Netanyahu complimented his host on "what I hear is a terrific golf game," and invited Obama to visit Israel after leaving the presidency to play a round.
"I want you to know Barack that you will always be a welcome guest in Israel," Netanyahu said. "We'll set up a tee time," Obama joked.
Washington, meanwhile, has criticized Israel's ongoing and accelerating building of settler homes on occupied Palestinian land, arguing that this could put hopes of a negotiated settlement to the dispute beyond reach.
More From This Section
But both sides still recognize the other as a close ally, and Obama's offer of USD 38 billion over ten years is the biggest military assistance pact in US history.
"It allows the Israelis to have some kind of certainty in a moment when there's enormous uncertainty in the region. It's a very difficult and dangerous time in the Middle East," Obama said.
Netanyahu also celebrated the "unbreakable bond," saying: "Our alliance has grown decade after decade, through successive presidents, bipartisan Congress and with the overwhelming support of the American people."
But the disagreements between the men were not entirely absent. As a smiling Obama noted that his guest "has always been candid with us."
"We do have concerns around settlement activity as well, and our hope is that we can continue to be an effective partner with Israel," Obama said.
Obama and Netanyahu came to power at the same time in 2009 and have had several spats over the years.
And in March 2015 during a re-election battle Netanyahu defied decades of US Middle East policy by rejecting the idea of a Palestinian state, only to reverse his own position a few days later once he was back in office.