I was wrong it was 97% not 99%.

In 2000, US President Bill Clinton convened a peace summit between Palestinian President Yasser Arafat and Israeli Prime Minister Ehud Barak. In May of that year, according to Nathan Thrall, Israel had offered Palestinians 66% of the West Bank, with 17% annexed to Israel, and a further 17% not annexed but under Israeli control, and no compensating swap of Israeli territory.[40] The Israeli prime minister offered the Palestinian leader between 91%[note 1] and 95%[41][42] (sources differ on the exact percentage) of the West Bank and the entire Gaza Strip if 69 Jewish settlements (which comprise 85% of the West Bank’s Jewish settlers) be ceded to Israel. East Jerusalem would have fallen for the most part[43] under Israeli sovereignty, with the exception of most suburbs with heavy non-Jewish populations surrounded by areas annexed to Israel.[44] The issue of the Palestinian right of return would be solved through significant monetary reparations.[45]

Proposed in the fall of 2000 following the collapse of the Camp David talks, The Clinton Parameters included a plan on which the Palestinian State was to include 94-96% of the West Bank, and around 80% of the settlers were to become under Israeli sovereignty, and in exchange for that, Israel would concede some territory (so called ‘Territory Exchange’ or ‘Land Swap’) within the Green Line (1967 borders). The swap would consist of 1–3% of Israeli territory, such that the final borders of the West Bank part of the Palestinian state would include 97% of the land of the original borders.[49]

Flash forward a few years to Obama and this is where shit falls apart. First, Netanyahu sets the table pretty decently and talks resume

In June 2009, reacting to US President Barack Obama’s Cairo Address,[40] Israeli Prime Minister Benjamin Netanyahu declared for the first time[57] conditional support for a future Palestinian state[58] but insisted that the Palestinians would need to make reciprocal gestures and accept several principles: recognition of Israel as the nation-state of the Jewish people; demilitarization of a future Palestinian state, along with additional security guarantees, including defensible borders for Israel;[59] Palestinians would also have to accept that Jerusalem would remain the united capital of Israel, and renounce their claim to a right of return.

But surprise! Hamas and Hezbollah

Hamas and Hezbollah, however threatened violence, especially if either side seemed likely to compromise in order to reach an agreement

Israel existing is nearly always the thing that stops talks, and always because of extremist pressure upon the Palestinian government. The other time they fell apart was when noted shitbird Ariel Sharon tanked them.