Government on course to reach debt target, with public sector net debt forecast to peak at 76.3% in 2014/15 before falling the following year.
Osborne said he will use his windfall to "pay off debt".
Osborne says UK forces will cease combat operations in Afghanistan in 2014.
The Chancellor has said that lower gilt rates reflect the confidence of investors. But the rates were lowered by quantitative easing.
Osborne: Analysis shows the need for savings in welfare of £10 billion by 2016.
Osborne announces automatic review of state pension age to ensure it keeps pace with increasing life spans.
Extra £100 million of improvements to armed forces accommodation, funded by £2.4 billion savings from ending combat operations in Afghanistan.
You get the feeling that if he were Chancellor for the next 15 years, Osborne would mention Gordon Brown's ill-judged sell-off of gold in each Budget he delivers. He just claimed that the £2bn Brown sold off in gold reserves would now be worth £13bn.
Forces serving overseas to receive 100% relief on average council tax bill, and families welfare grant will be doubled.
The Government is to consult on gilts with maturities longer than 50 years.
Osborne says Britain is in the top 10 of countries deemed good place for doing business. But it must do better.
The Get Britain Building Fund is to provide finance for construction to be expanded.
Unemployment: Claimant count to peak at 1.67 million this year
Finance Partnership to be expanded by 20% and the Enterprise Finance Guarantee will also be expanded.
The Chancellor has said that investment in transport in the North of England has been lacking for years - and "not by this government". In his main job, Osborne is the Tories' election strategist. He knows that northern votes will be needed to pull off a Tory majority in 2015. That is why he is, on this front, trotting out his inner-Keynesian.
Osborne says: 'UK must confront the lack of airport capacity in the south east. Announcements later this summer.'
Network Rail to extend the electrification of Trans-Pennine route.
Osborne says Government has struck a deal with Manchester to develop infrastructure in the city.
The Government is to support £150 million of tax increment financing to help councils promote development and provide an extra £270 million for the Growing Places fund.
£70m for investment in London. Boris Johnson will be telling a lot of Londoners that he is responsible for extracting that cash from No 11 over the coming weeks.
New enterprise areas in Dundee, Irvine and Nigg in Scotland and Deeside in Wales.
The Government is to seek "major savings" in adminstrative cost of the Carbon Reduction Commitment, and bring forward an alternative environment tax this autumn if they cannot be found.
"Major package of tax changes" to boost oil and gas extraction in North Sea, along with £3 billion new field allowance west of Shetland.