diff --git a/.env.sample.holesky b/.env.sample.holesky
index e66281fa..06d22177 100644
--- a/.env.sample.holesky
+++ b/.env.sample.holesky
@@ -250,6 +250,12 @@ LIDODVEXIT_EXIT_EPOCH=256
 # See available tags https://github.com/prometheus/prometheus/releases.
 #PROMETHEUS_VERSION=
 
+# Prometheus remote write token used for accessing external prometheus.
+#PROM_REMOTE_WRITE_TOKEN=
+
+# Prometheus service owner used to uniquely identify user from which metrics are pushed.
+#SERVICE_OWNER=charon_user
+
 # Uncomment these if you have log exporting with Promtail
 # and want to disable log export on a particular container.
 #EL_NETHERMIND_PROMTAIL_MONITORED=false
diff --git a/.env.sample.hoodi b/.env.sample.hoodi
index 15233cc2..e3ced06b 100644
--- a/.env.sample.hoodi
+++ b/.env.sample.hoodi
@@ -256,6 +256,12 @@ LIDODVEXIT_EXIT_EPOCH=256
 # See available tags https://github.com/prometheus/prometheus/releases.
 #PROMETHEUS_VERSION=
 
+# Prometheus remote write token used for accessing external prometheus.
+#PROM_REMOTE_WRITE_TOKEN=
+
+# Prometheus service owner used to uniquely identify user from which metrics are pushed.
+#SERVICE_OWNER=charon_user
+
 # Uncomment these if you have log exporting with Promtail
 # and want to disable log export on a particular container.
 #EL_NETHERMIND_PROMTAIL_MONITORED=false
diff --git a/.env.sample.mainnet b/.env.sample.mainnet
index 15673f81..69957e4b 100644
--- a/.env.sample.mainnet
+++ b/.env.sample.mainnet
@@ -256,6 +256,12 @@ LIDODVEXIT_EXIT_EPOCH=194048
 # See available tags https://github.com/prometheus/prometheus/releases.
 #PROMETHEUS_VERSION=
 
+# Prometheus remote write token used for accessing external prometheus.
+#PROM_REMOTE_WRITE_TOKEN=
+
+# Prometheus service owner used to uniquely identify user from which metrics are pushed.
+#SERVICE_OWNER=charon_user
+
 # Uncomment these if you have log exporting with Promtail
 # and want to disable log export on a particular container.
 #EL_NETHERMIND_PROMTAIL_MONITORED=false