Using Hybrid Machine Learning Methods to Predict and Improve the Energy Consumption Efficiency in Oil and Gas Fields

Table 2

Test dataset results of linear regression over all subsets.

Linear regression	RMSE	MAE	MAPE	R2
Subset 1	6.51	5.33	10.32	0.4215
Subset 2	6.52	5.34	10.69	0.4214
Subset 3	6.52	5.34	10.92	0.4121