Due to scarcity. There exist unlimited wants but only scarce amount of resources to meet those wants so items must be allocated through a system of prices or through exchange. 
        
             
        
        
        
Answer:
The allowance can be taken based on:
a reduction (production) of the oil and gas reserves.
Explanation:
A limited partnership's allowance for depletion is a special form of depreciation used to account for the gradual reduction in the value of natural resources based on their usage or consumption.  There are two methods for recognizing depletion of natural resources.  They are the cost depletion method, which is based on usage, and the percentage depletion method, which is a percentage of gross earnings.  Then, depletion is different from depreciation, in that depreciation is for tangible assets, while depletion is for natural assets.
 
        
             
        
        
        
Answer and explanation:
Under such a scenario, it is important to highlight that the SWOT analysis is useful to spot the internal Strengths and Weaknesses of the firm as well as the external Opportunities and Threats of the market. The SWOT analysis is a helpful tool that allows companies to understand what their core competencies are as well as the components that need improvement. At the same time, the SWOT analysis gives the firm an idea of what are the sectors of the market that could bring potential profits for the entity and which ones represent potential losses.