JOINT PETITION OF OHIO VALLEY GAS CORPORATION AND OHIO VALLEY GAS, INC. FOR (1) AUTHORITY TO INCREASE ITS RATES AND CHARGES FOR GAS UTILITY SERVICE, (2) APPROVAL OF NEW SCHEDULES OF RATES AND CHARGES, (3) APPROVAL OF DECOUPLING THROUGH A NEW SALES RECONCILIATION COMPONENT RIDER, AND (4) APPROVAL OF NECESSARY AND APPROPRIATE ACCOUNTING RELIEF AND OTHER REQUESTS.