User:Jlefevre76/TableofOilNER

$$NER_{oil} = \frac{F_{oil}}{\sum_{i=1}^N X_i + \sum_{i=1}^N E_i + \sum_{i=1}^N I_i}$$

$$NER_{total} = \frac{\sum_{j=1}^M F_i}{\sum_{i=1}^N X_i + \sum_{i=1}^N E_i + \sum_{i=1}^N I_i}$$

$$NER_{total, flare} = \frac{\sum_{j=1}^M F_j}{\sum_{i=1}^N X_i + \sum_{i=1}^N E_i + \sum_{i=1}^N I_i + \sum_{i=1}^N W_i}$$

F represents the flow in production in energy sources, typically in the form of oil and natural gas (although occasionally electrical grid outputs) from an oil and gas field. E represents external energy inputs required for an oil and gas extraction project. X represents internal energy inputs for an oil and gas project (fuel from the production flow used to perpetuate the project). I represents indirect energy inputs required to maintain the E inputs into the process. W represents the wasted energy, usually in the form of flared products.