T13N-R11W has become the first township-range to have Haynesville Unit applications for all 36 sections. Please see the following listing of the units.
S1-T13N-R11W, HA RB SUU Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S2-T13N-R11W, HA RD SUK Unit, Encana, RR-Bull Bayou Field, Red River Parish
S3-T13N-R11W, HA RD SUL Unit, Encana, RR-Bull Bayou Field, Red River Parish
S4-T13N-R11W, HA RD SUM Unit, Encana, RR-Bull Bayou Field, Red River Parish
S5-T13N-R11W, HA RD SUN Unit, Encana, RR-Bull Bayou Field, Red River Parish
S6-T13N-R11W, HA RD SUW Unit, Chesapeake, RR-Bull Bayou Field, DeSoto Parish
S7-T13N-R11W, HA RB SUZ Unit, Petrohawk, RR-Bull Bayou Field, DeSoto Parish
S8-T13N-R11W, HA RB SUX Unit, Petrohawk, RR-Bull Bayou Field, DeSoto Parish
S9-T13N-R11W, HA RB SUG Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S10-T13N-R11W, HA RB SUR Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S11-T13N-R11W, HA RB SUP Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S12-T13N-R11W, HA RB SUV Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S13-T13N-R11W, HA RB SU78 Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S14-T13N-R11W, HA RB SUQ Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S15-T13N-R11W, HA RB SUH Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S16-T13N-R11W, HA RB SUE Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S17-T13N-R11W, HA RB SUM Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S18-T13N-R11W, HA RB SUN Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S19-T13N-R11W, HA RB SUS Unit, Petrohawk, RR-Bull Bayou Field, DeSoto Parish
S20-T13N-R11W, HA RB SUVV Unit, Chesapeake, RR-Bull Bayou Field, Red River Parish
S21-T13N-R11W, HA RB SUT Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S22-T13N-R11W, HA RB SU60 Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S23-T13N-R11W, HA RB SU61 Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S24-T13N-R11W, HA RB SU62 Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S25-T13N-R11W, HA RB SUF Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S26-T13N-R11W, HA RB SURR Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S27-T13N-R11W, HA RB SU55 Unit, Chesapeake, RR-Bull Bayou Field, Red River Parish
S28-T13N-R11W, HA RB SU56 Unit, Chesapeake, RR-Bull Bayou Field, Red River Parish
S29-T13N-R11W, HA RB SU67 Unit, Chesapeake, RR-Bull Bayou Field, DeSoto Parish
S30-T13N-R11W, HA RB SUUU Unit, Chesapeake, RR-Bull Bayou Field, DeSoto Parish
S31-T13N-R11W, HA RB SUSS Unit, Chesapeake, RR-Bull Bayou Field, DeSoto Parish
S32-T13N-R11W, HA RB SUTT Unit, Chesapeake, RR-Bull Bayou Field, DeSoto Parish
S33-T13N-R11W, HA RB SU57 Unit, Chesapeake, RR-Bull Bayou Field, Red River Parish
S34-T13N-R11W, HA RB SU58 Unit, Chesapeake, RR-Bull Bayou Field, Red River Parish
S35-T13N-R11W, HA RB SUY Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
S36-T13N-R11W, HA RB SUD Unit, Petrohawk, RR-Bull Bayou Field, Red River Parish
Note that T15N-R16W was the first township-range to have Haynesville Units for all sections but this had only 30 units.