The nm-mode is mainly for syntax highlighting. It is derived from f90-mode, so that it inherits most Fortran syntax font faces.

To use, download nm-mode.el and copy it to lisp search path, and add to the init.el

(require 'nm-mode)

To automatically use this mode on *.ctl and *.mod control files, add the following to init.el.

(add-to-list 'auto-mode-alist '("\\.ctl\\'" . nm-mode))
(add-to-list 'auto-mode-alist '("\\.mod\\'" . nm-mode))

The colors are chosen to work with gruvbox-light-soft theme.