Hence, this petition for certiorariv[5] raising the following issues: "I WHETHER OR NOT RESPONDENT NLRC ACTED WITHOUT OR IN EXCESS OF JURISDICTION OR WITH GRAVE ABUSE OF DISCRETION AMOUNTING TO LACK OR EXCESS OF JURISDICTION IN NOT DECLARING THAT THE LUMPSUM MODE OF PAYMENT OF PETITIONERS' MONTHLY SALARIES BY PRIVATE RESPONDENTS IS ILLEGAL II WHETHER OR NOT RESPONDENT NLRC ACTED WITHOUT OR IN EXCESS OF JURISDICTION OR WITH GRAVE ABUSE OF DISCRETION AMOUNTING TO LACK OR EXCESS OF JURISDICTION IN NOT ORDERING PRIVATE RESPONDENTS, JOINTLY AND SEVERALLY, TO PAY THE ADMITTED UNDERPAYMENTS AS SHOWN BY PRIVATE RESPONDENTS' COMPUTATION AND BASED ON PETITIONERS' REGULAR WAGES AND LEGAL FORMULAS FOR COMPUTING OVERTIME PAY, HOLIDAY/REST DAY PAY, 13TH MONTH PAY AND NIGHT SHIFT DIFFERENTIALS III WHETHER OR NOT RESPONDENT NLRC ACTED WITHOUT OR IN EXCESS OF JURISDICTION OR WITH GRAVE ABUSE OF DISCRETION AMOUNTING TO LACK OR EXCESS OF JURISDICTION IN NOT DECLARING THE DAYS-OFF PAY AS BONUS AND NOT PART OF PETITIONERS' SALARIES WHICH COULD NOT OFFSET THE ADMITTED UNDERPAYMENTS IV WHETHER OR NOT RESPONDENT NLRC ACTED WITHOUT OR IN EXCESS OF JURISDICTION OR WITH GRAVE ABUSE OF DISCRETION AMOUNTING TO LACK OR EXCESS OF JURISDICTION IN NOT ORDERING THE PHILIPPINE OVERSEAS EMPLOYMENT ADMINISTRATION (POEA) TO COMPLY WITH ITS MANDATED DUTY TO SET UP STANDARD EMPLOYMENT CONTRACT AND GUIDING RATES FOR OILRIG WORKERS LIKE PETITIONERS V WHETHER OR NOT RESPONDENT NLRC ACTED WITHOUT OR IN EXCESS OF JURISDICTION OR WITH GRAVE ABUSE OF DISCRETION AMOUNTING TO LACK OR EXCESS OF JURISDICTION IN NOT DECLARING THAT PRIVATE RESPONDENTS FAILED TO COMPLY WITH THE LEGAL REQUIREMENT OF MANDATORY PERSONAL INSURANCE PROVIDED IN THE POEA RULES AND REGULATIONS AND IN ALLOWING PRIVATE RESPONDENTS TO INSURE PETITIONERS WITH A FOREIGN INSURANCE COMPANY ILLEGALLY DOING BUSINESS IN THE PHILIPPINES