diff --git a/ci/cases/gfsv17/marinehyb.yaml b/ci/cases/gfsv17/marinehyb.yaml
index 9c9e2a15451..0bb0d7d6050 100644
--- a/ci/cases/gfsv17/marinehyb.yaml
+++ b/ci/cases/gfsv17/marinehyb.yaml
@@ -9,6 +9,7 @@ base:
   DO_JEDISNOWDA: "NO"
   DO_MERGENSST: "NO"
   DOHYBVAR_OCN: "YES"
+  DOLETKF_OCN: "NO"
   DO_FIT2OBS: "YES"
   DO_VERFOZN: "YES"
   DO_VERFRAD: "YES"
diff --git a/ci/cases/yamls/soca_hyb_gfs_defaults_ci.yaml b/ci/cases/yamls/soca_hyb_gfs_defaults_ci.yaml
index bad760aca0f..99ca9911672 100644
--- a/ci/cases/yamls/soca_hyb_gfs_defaults_ci.yaml
+++ b/ci/cases/yamls/soca_hyb_gfs_defaults_ci.yaml
@@ -4,5 +4,6 @@ base:
   ACCOUNT: {{ 'HPC_ACCOUNT' | getenv }}
   DO_JEDIOCNVAR: "YES"
   DOHYBVAR_OCN: "YES"
+  DOLETKF_OCN: "YES"
 marineanl:
   SOCA_NINNER: 1
diff --git a/parm/config/gfs/config.base b/parm/config/gfs/config.base
index 012e244f457..b76e5fed8a7 100644
--- a/parm/config/gfs/config.base
+++ b/parm/config/gfs/config.base
@@ -378,6 +378,7 @@ export DO_STARTMEM_FROM_JEDIICE="@DO_STARTMEM_FROM_JEDIICE@"
 # Hybrid related
 export DOHYBVAR="@DOHYBVAR@"
 export DOHYBVAR_OCN="@DOHYBVAR_OCN@"
+export DOLETKF_OCN="@DOLETKF_OCN@"
 export NMEM_ENS=@NMEM_ENS@
 export SMOOTH_ENKF="NO"
 export l4densvar=".true."
diff --git a/parm/config/gfs/yaml/defaults.yaml b/parm/config/gfs/yaml/defaults.yaml
index 6f8cb840dd9..272be765a6c 100644
--- a/parm/config/gfs/yaml/defaults.yaml
+++ b/parm/config/gfs/yaml/defaults.yaml
@@ -22,6 +22,7 @@ base:
   EUPD_CYC: "gdas"
   FHMAX_ENKF_GFS: 12
   DOHYBVAR_OCN: "NO"
+  DOLETKF_OCN: "NO"
   DO_TEST_MODE: "NO"
 
 atmanl:
diff --git a/scripts/exglobal_archive_tars.py b/scripts/exglobal_archive_tars.py
index 26fc7d6eef7..26e331b0f0a 100755
--- a/scripts/exglobal_archive_tars.py
+++ b/scripts/exglobal_archive_tars.py
@@ -37,7 +37,7 @@ def main():
             'FHOUT_HF_WAV', 'FHMAX_WAV', 'FHMAX_HF_WAV', 'FHMAX_WAV_GFS',
             'restart_interval_gdas', 'restart_interval_gfs', 'DO_ARCHCOM',
             'DO_AERO_ANL', 'DO_AERO_FCST', 'DO_CA', 'DOIBP_WAV', 'DO_JEDIOCNVAR', 'DOHYBVAR_OCN',
-            'NMEM_ENS', 'DO_JEDIATMVAR', 'FHMAX_FITS', 'waveGRD',
+            'DOLETKF_OCN', 'NMEM_ENS', 'DO_JEDIATMVAR', 'FHMAX_FITS', 'waveGRD',
             'IAUFHRS', 'DO_FIT2OBS', 'NET', 'FHOUT_HF_GFS', 'FHMAX_HF_GFS', 'REPLAY_ICS',
             'OFFSET_START_HOUR', 'ARCH_EXPDIR', 'EXPDIR', 'ARCH_EXPDIR_FREQ', 'ARCH_HASHES',
             'ARCH_DIFFS', 'SDATE', 'EDATE', 'HOMEgfs', 'DO_GEMPAK', 'DATASETS_YAML',
diff --git a/workflow/applications/gfs_cycled.py b/workflow/applications/gfs_cycled.py
index ddc27986697..c880da06c67 100644
--- a/workflow/applications/gfs_cycled.py
+++ b/workflow/applications/gfs_cycled.py
@@ -39,6 +39,7 @@ def _get_run_options(self, conf: Configuration) -> Dict[str, Any]:
 
             run_options[run]['do_hybvar'] = base.get('DOHYBVAR', False)
             run_options[run]['do_hybvar_ocn'] = base.get('DOHYBVAR_OCN', False)
+            run_options[run]['do_letkf_ocn'] = base.get('DOLETKF_OCN', False)
             run_options[run]['nens'] = base.get('NMEM_ENS', 0)
             if run_options[run]['do_hybvar']:
                 run_options[run]['lobsdiag_forenkf'] = base.get('lobsdiag_forenkf', False)
@@ -68,8 +69,10 @@ def _get_app_configs(self, run):
 
         if options['do_jediocnvar']:
             configs += ['prepoceanobs', 'marineanlinit', 'marinebmat', 'marineanlvar']
+            if options['do_letkf_ocn']:
+                configs += ['marineanlletkf']
             if options['do_hybvar']:
-                configs += ['marineanlletkf', 'ocnanalecen']
+                configs += ['ocnanalecen']
             configs += ['marineanlchkpt', 'marineanlfinal']
 
         if options['do_ocean'] or options['do_ice']:
@@ -192,8 +195,10 @@ def get_task_names(self):
 
                 if options['do_jediocnvar']:
                     task_names[run] += ['prepoceanobs', 'marineanlinit', 'marinebmat', 'marineanlvar']
+                    if options['do_letkf_ocn']:
+                        task_names[run] += ['marineanlletkf']
                     if options['do_hybvar']:
-                        task_names[run] += ['marineanlletkf', 'ocnanalecen']
+                        task_names[run] += ['ocnanalecen']
                     task_names[run] += ['marineanlchkpt', 'marineanlfinal']
 
                 task_names[run] += ['sfcanl']