| Value | Category | Cases | |
|---|---|---|---|
| 1 | Public Network | 223 | 
                                                                 
                                    
                                    79.9%
                                 
                                                             | 
                                                        
                    
| 2 | Wells | 22 | 
                                                                 
                                    
                                    7.9%
                                 
                                                             | 
                                                        
                    
| 3 | Transport in Tanks | 30 | 
                                                                 
                                    
                                    10.8%
                                 
                                                             | 
                                                        
                    
| 4 | Other | 4 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             |