| Value | Category | Cases | |
|---|---|---|---|
| 1 | Public Network | 221 | 
                                                                 
                                    
                                    81.5%
                                 
                                                             | 
                                                        
                    
| 2 | Wells | 27 | 
                                                                 
                                    
                                    10%
                                 
                                                             | 
                                                        
                    
| 3 | Transport in Tanks | 17 | 
                                                                 
                                    
                                    6.3%
                                 
                                                             | 
                                                        
                    
| 4 | Other | 6 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             |