Shell UK is to close its £13bn final salary pension scheme to new joiners.
It is believed to be the last of the UK's top 100 publicly listed companies to pull out of offering gold-plated final salary pensions to new recruits.
Final salary schemes promise a guaranteed proportion of salary to members on retirement, depending on the number of years worked.
As employers look to cut costs, 90% of the schemes have been closed to new members, according to research from the Association of Consulting Actuaries.
From early 2013 new staff at Shell will be offered membership of a scheme without a guaranteed level of pension.
Existing members of the Shell scheme will be allowed to continue contributing and building up their salary-linked pensions.
The National Association of Pension Funds says that nearly a quarter of private sector final salary schemes are now closed to both new joiners and further contributions from existing members.