<p class="MsoNormal">Saudi Arabia's oil minister Prince Abdulaziz bin Salman on Wednesday said cooperation in the energy sector could be a launch pad for a good relationship with the incoming Joe Biden administration in the US. <span style="line-height:107%">His comments exude a conciliatory tone toward the US President-elect as Saudi Arabia, a close ally of President Donald Trump, has appeared wary of Biden.</span></p>