This report from the forthcoming edition of the OECD Sovereign Borrowing Outlook 2017 examines net and gross sovereign borrowing in OECD countries from 2007 to 2017. It first looks at net and gross borrowing needs of OECD governments in the context of fiscal developments. It then considers recent trends in central government marketable debt in the OECD area and central government debt ratios for groups of selected OECD countries. Finally, the report examines funding strategies and growing issuance of debt with 30 or more years of maturities.