If I understand you right, you want to show a post by a certain user with a custom post type
Here is the code I would use, it might use a little more customizing, but it should give you the effect you want.
<?php
function display_oftera_post () {
global $current_user;
get_currentuserinfo(); // Logged in User
if ( is_user_logged_in() ) { // If User is logged in, display the post
$args = array( // Post Arguments
'post_type' => 'oftera', // Post Type
'author' => $current_user->ID
);
$the_query = new WP_Query( $args);
while ($the_query -> have_posts()) : $the_query -> the_post(); ?>
<h2><a href="https://wordpress.stackexchange.com/questions/129179/<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
<p> <?php the_content(); ?> </p>
<?php endwhile;
}
}
?>