This excerpt taken from the SGU DEF 14A filed Jan 24, 2006.
What should I do if I want to make a proposal to be considered at the meeting?
Your units do not entitle you to make proposals at the special meeting. Under our partnership agreement, only our general partner, Star Gas, can make a proposal at the meeting. Our partnership agreement establishes a procedure for calling meetings whereby limited partners owning 20% or more of the outstanding units of the class for which a meeting is proposed may call a meeting at which they may make proposals.