diff --git a/lua/resession/extensions/oil.lua b/lua/resession/extensions/oil.lua
new file mode 100644
index 0000000..b3f8058
--- /dev/null
+++ b/lua/resession/extensions/oil.lua
@@ -0,0 +1,23 @@
+local M = {}
+
+M.on_save = function()
+  return {}
+end
+
+M.on_load = function(data) end
+
+M.is_win_supported = function(winid, bufnr)
+  return vim.bo[bufnr].filetype == "oil"
+end
+
+M.save_win = function(winid)
+  local bufnr = vim.api.nvim_win_get_buf(winid)
+  local bufname = vim.api.nvim_buf_get_name(bufnr)
+  return { bufname = bufname }
+end
+
+M.load_win = function(winid, config)
+  require("oil").open(config.bufname)
+end
+
+return M