Shell told TheCable that it was “shocked and saddened” as a company when the Ogoni executions took place in 1995.
It said the allegations of complicity made by Amnesty “are false and without merit”.
Bamidele Odugbesan, Shell media relations manager, in a statement made available to TheCable, said: “We have always denied, in the strongest possible terms, the allegations made in this tragic case. The executions of Ken Saro-Wiwa and his fellow Ogonis in 1995 were tragic events that were carried out by the military government in power at the time.
“We were shocked and saddened when we heard the news of the executions. Shell appealed to the Nigerian government to grant clemency. To our deep regret, that appeal, and the appeals made by many others within and outside Nigeria, went unheard.
“Support for human rights in line with the legitimate role of business is fundamental to Shell’s core values of honesty, integrity and respect for people. Amnesty International’s allegations concerning SPDC are false and without merit.
“SPDC did not collude with the authorities to suppress community unrest and in no way encouraged or advocated any act of violence in Nigeria. We believe that the evidence will show clearly that Shell was not responsible for these tragic events.”