diff --git a/opm/simulators/utils/UnsupportedFlowKeywords.cpp b/opm/simulators/utils/UnsupportedFlowKeywords.cpp
index ba88c252a..65a1953c4 100644
--- a/opm/simulators/utils/UnsupportedFlowKeywords.cpp
+++ b/opm/simulators/utils/UnsupportedFlowKeywords.cpp
@@ -550,8 +550,6 @@ const KeywordValidation::UnsupportedKeywords& unsupportedKeywords()
         {"ROCKOPTS", {false, std::nullopt}},
         {"ROCKTAB", {false, std::nullopt}},
         {"RPTGRID", {false, std::nullopt}},
-        {"RPTONLY", {false, std::nullopt}},
-        {"RPTONLYO", {false, std::nullopt}},
         {"RPTPROS", {false, std::nullopt}},
         {"PRTRST", {false, std::nullopt}},
         {"RPTRUNSP", {false, std::nullopt}},
@@ -568,7 +566,6 @@ const KeywordValidation::UnsupportedKeywords& unsupportedKeywords()
         {"SKIP", {false, std::nullopt}},
         {"SKIP100", {false, std::nullopt}},
         {"SKIP300", {false, std::nullopt}},
-        {"SUMTHIN", {false, std::nullopt}},
         {"SALT", {false, std::nullopt}},
         {"SALTNODE", {false, std::nullopt}},
         {"SALTREST", {false, std::nullopt}},