Exhibit 99.1

Pacific Coast Oil Trust

Pacific Coast Oil Trust Announces Monthly Cash Distribution

For Immediate Release

Austin, Texas July 20, 2012 — PACIFIC COAST OIL TRUST (NYSE—ROYT) (the “Trust”), a perpetual royalty trust, announced today a cash distribution to the holders of its units of beneficial interest of $0.15187 per unit, payable on August 14, 2012, to unitholders of record on July 31, 2012.  The Trust’s distribution relates to net profits and overriding royalties generated during June 2012 as provided in the conveyance of net profits and overriding royalty interest.

The following table displays Pacific Coast Energy Company LP’s (“PCEC”) underlying sales volumes and average prices for the month of June 2012.

(a) Crude oil sales represented 98% of sales volumes.

(b) Crude oil sales represented 100% of sales volumes.

Pacific Coast Oil Trust is a perpetual Delaware statutory trust formed by PCEC to own interests in certain oil and gas properties in the Santa Maria Basin and the Los Angeles Basin (the “Underlying Properties”).  The Underlying Properties consist of (i) the proved developed reserves as of December 31, 2011 on the Underlying Properties, which we refer to as the “Developed Properties,” and (ii) all other development potential on the Underlying Properties, which we refer to as the “Remaining Properties.”  Production from the Developed Properties attributable to the trust is produced from wells that, because they have already been drilled, require limited additional capital expenditures.  Production from the Remaining Properties that will be attributable to the trust will require capital expenditures for the drilling of wells and installation of infrastructure.  PCEC will supply required capital on behalf of the Trust during this period; however, because the costs initially incurred exceed gross proceeds, the Remaining Properties currently have negative net profits during this drilling and development period.  During this period of negative net profits, instead of being paid net profits, the Trust is paid a 7.5% overriding royalty on the portion of the Remaining Properties located on PCEC’s Orcutt properties.  Once revenues from the Remaining Properties have paid back PCEC for the cumulative costs it has advanced on behalf of the trust, then the net profits interests on the Remaining Properties will be paid out in place of the royalty interests, as described below.  These interests entitle the Trust to receive the following:

Developed Properties

·                  80% of the net profits from the sale of oil and natural gas production from the Developed Properties.

Remaining Properties

·                  7.5% of the proceeds (free of any production or development costs but bearing the proportionate share of production and property taxes and post-production costs) attributable to the sale of all oil and natural gas production from the Remaining Properties located on PCEC’s Orcutt properties, or

·                  25% of the net profits from the sale of oil and natural gas production from all of the Remaining Properties.

The current net profits amount from the Developed Properties was approximately $5.9 million, after receipt by PCEC from its counterparties of $1.1 million related to the settlement of applicable hedge contracts.  The development expense for the Developed Properties was less than $0.1 million during the period.

The current distribution also includes a 7.5% overriding royalty on the Remaining Properties which produced 1,857 Boe from 17 new Orcutt Diatomite wells in June 2012.

Trust administrative expenses incurred in connection with the Trust, and the monthly operating and services fee payable to PCEC, totaling $0.1 million were deducted in the calculation of the distribution payable to unit holders.  Future administrative expenses are expected to vary.

The Developed Properties, the Remaining Properties and the Trust’s net profits and royalty interests are described in more detail in the Trust’s filings with the Securities and Exchange Commission (the “SEC”). As described in the Trust’s filings with the SEC, the amount of the periodic distributions is expected to fluctuate, depending on the proceeds received by the Trust as a result of actual production volumes, oil and gas prices, development expenses, and the amount and timing of the Trust’s administrative expenses, among other factors. Future distributions are expected to be made on a monthly basis. For additional information on the Trust, please visit investor.pacificcoastoiltrust.com.

This press release contains statements that are “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. All statements contained in this press release, other than statements of historical facts, are “forward-looking statements” for purposes of these provisions. These forward-looking statements include the amount and date of any anticipated distribution to unitholders. The anticipated distribution is based, in part, on the amount of cash received or expected to be received by the Trust from PCEC with respect to the relevant period. Any differences in actual cash receipts by the Trust could affect this distributable amount. Other important factors that could cause actual results to differ materially include expenses of the Trust and reserves for anticipated future expenses. Statements made in this press release are qualified by the cautionary statements made in this press release. Neither PCEC nor the Trustee intends, and neither assumes any obligation, to update any of the statements included in this press release. An investment in units issued by Pacific Coast Oil Trust is subject to the risks described in the Trust’s filings with the SEC. The Trust’s quarterly and other filed reports are or will be available over the Internet at the SEC’s website at http://www.sec.gov.