1
                                                                   EXHIBIT 99.1


                  Vista and Midland Resources Complete Merger

     MIDLAND, Texas, Oct. 28 / PRNewswire/ -- Vista Resources Partners, L.P. 
and  Midland Resources, Inc. (Amex: MLD) today announced the completion of a
merger  between the two companies. The shares of common stock of the combined
company,  called Vista Energy Resources, Inc., will begin trading on the
American Stock  Exchange under the symbol "VEI" on Thursday, October 29, 1998.
Also as a result  of the merger, Midland Resources' currently outstanding
warrants will continue  to be traded on the American Stock Exchange under the
symbol "VEI.WS" and will  become exercisable for shares of Vista's common stock
on a one for one basis.

     At a special meeting of Midland Resources shareholders held today, holders 
of 69 percent of Midland Resources common shares outstanding voted in favor 
of the merger. Pursuant to the Merger Agreement. Midland Resources shareholders 
will receive one share of Vista common stock for each Midland Resources share. 
Record holders of Midland Resources common stock will be sent letters of 
transmittal with instructions for changing their stock certificates.

     Effective with the merger, Vista will have approximately 16.3 million 
shares outstanding. Vista's asset base is located in the Permian Basin and in 
the onshore regions of the Texas Gulf Coast. Combined daily net production is 
approximately 1800 barrels of crude oil and 5300 Mcf of natural gas per day. 
The combined reserve base, pro forma at December 31, 1997, totals approximately 
14.1 million barrels of crude oil equivalents. The reserves are approximately 
70 percent oil and over 90 percent operated by Vista.

     Randy Hill, Vista's Chairman and Chief Executive Officer, said "This 
merger brings numerous drilling and exploitation opportunities to increase the 
size and value of Vista. Over the next 14 months we intend to drill 25 to 30 
locations spending an estimated $9.0 to $12.0 million, excluding acquisitions. 
Because of the complementary nature of the companies' asset bases, the 
combination of Vista and Midland Resources will generate an estimated savings 
of $1.6 million in annual general administrative and lease operating expenses. 
Coupled with our proven acquisition, exploitation and exploration strategy we 
believe this combined group of assets will help us continue to rapidly growing 
Vista's equity value on a per share basis."



                                     (more)
   2
                                      -2-


  This announcement includes "forward-looking statements" within the meaning of 
Section 27A of the Securities Act of 1933, as amended, and Section 21F of the 
Securities Exchange Act of 1934, as amended. Such forward-looking statements 
include, without limitation, estimates with respect to reserves and growth 
opportunities. Although Vista believes that the expectations reflected in such 
forward-looking statements are reasonable, they can give no assurance that such 
expectations will prove to have been correct. Important factors that could 
cause actual results to differ materially from those in the forward-looking 
statements include risks inherent in drilling activities, the timing and extent 
of changes in commodity prices, unforeseen engineering and mechanical or 
technological difficulties in drilling wells, and other risks more fully 
described in Vista's filings with the Securities and Exchange Commission.

     Vista Energy Resources, Inc. (Amex: VEI) is engaged in the acquisition, 
development, production of, and exploration for, oil and natural gas. Vista 
owns and operates oil and gas properties principally in the Permian Basin of 
West Texas and Southeastern New Mexico and in the onshore regions of the Texas 
Gulf Coast.

SOURCE  Vista Resources Partners, L.P.
     -0-                            10/28/98
     /CONTACT: C. Randall Hill of Vista Energy Resources, Inc., 915-570-5045/ 
     (VEI MLD


                                      -30-