1. That repressuring operations of such pool or pools, or portions thereof, will tend to arrest or ameliorate subsidence; and

2. That compulsory repressuring operations are required by reason of the failure, refusal or inability of the respective parties within the affected area to agree upon and initiate approved repressuring operations; and

3. That subsidence of land overlying or immediately adjacent to such pool or pools is injuring or imperiling valuable buildings, or other improvements, or harbor installations or is interfering with commerce, navigation and fishery, or substantial portions of such lands may be inundated if subsidence continues, thereby endangering life, health, safety, peace, welfare and property; and

4. That unit operation of such pool or pools, or portions thereof, is reasonably necessary to carry out repressuring operations in accordance with the theretofore adopted pressuring plan; and

5. That the creation of the unit is feasible, necessary and justifiable under all conditions affecting the unit at the time of its creation or which can be reasonably anticipated by the supervisor at such time;

then the supervisor shall issue an order requiring unit operation of such pool or pools, or portions thereof, on such terms and conditions as may be determined from the evidence to be fair, reasonable, equitable and in conformance with said repressuring plan.