The abbreviation for "million cubic feet".
                                                            
                                                     
                        
                                                
                        
                        
                            A million cubic feet. See CUBIC FOOT.
                                                            
                                                     
                        
                                                
                        
                        
                            A MMCF is equivalent to 1,000,000 cubic feet (of gas), or 1,000 Mcf.
                                                            
                                                     
                        
                                                
                        
                        
                            One million cubic feet. Often used to describe a well¨s production per day as MMcf/d.
                                                            
                                                     
                        
                                                
                        
                        
                            One million standard cubic feet or one thousand Mcf.