Nobody being willing to make large cuts is different from nobody making cuts. The US is not a member of OPEC, nor are several other oil producing countries: they don't follow OPEC but may still reduce output.
There is rumor OPEC isn't cutting production because they believe they can undercut their competitors and put them out of business - I don't think that is their motivation, but it is something that can't be ignored.
There is rumor OPEC isn't cutting production because they believe they can undercut their competitors and put them out of business - I don't think that is their motivation, but it is something that can't be ignored.