Continental Gold Limited (TSX:CNL)(OTCQX:CGOOF) ("Continental" or the "Company") is pleased to announce results for 13 diamond drill-holes in the Yaraguá and San Agustin vein systems, as part of the Company's ongoing exploration program at the Buriticá Project in Antioquia, Colombia. Nine drills are currently on site as part of the Company's Phase IV diamond drill program for 2013.

 Santacruz Silver Mining Ltd. (TSX VENTURE:SCZ) is pleased to report the first six holes totaling approximately 1,000 meters of the 16,000 meter Phase II drilling campaign on the 100% owned Gavilanes Silver project in Durango, Mexico. The 7,347 hectare Gavilanes property hosts a low sulphidation epithermal system, where seven high grade silver veins and a stockwork area have been identified to date. The Phase II drill program is designed to test the continuation of three of the seven known silver-bearing veins, each of the veins average 1-kilometer in length, and a stockwork area identified in previous drilling.

Platinum Group Metals Ltd. (TSX:PTM) (NYSE MKT:PLG) ("Platinum Group" or the "Company") announces that Hole WB-99 has intersected 25.5 meters of the T2 layer grading 6.4 grams per tonne 3E (1.86 g/t Platinum, 3.20 g/t Palladium and 1.37 g/t Gold, 0.34% copper, 0.17% nickel) over a core length of 25.5 metres at a depth of 681.0 metres to 706.5 metres. Included is a higher grade intercept of 2.5 metres of 12.2 g/t 3E at 698.5 metres to 701.0 metres. This intercept is located 800 meters northeast along strike from the previous intercepts and 300 meters northeast of the blocks in the current T2 layer resources. The assays from WB-99 display the distinctive T layer metal ratios of approximately 29% Platinum, 50% Palladium and 21% Gold. WB-99 is within the JOGMEC joint venture, where the Company holds a 49.9% effective interest.

Temex Resources Corp. (TSX-V: TME, FWB: TQ1) ("Temex" or "the Company") reports assay results from the surface diamond drilling campaign on the Whitney Project located in Timmins, Ontario.  The drill program, which resumed in March, is being conducted in the past-producing Upper Hallnor Mine area and is targeting additional high grade gold resources in the Upper Hallnor and Bonetal areas, the expansion of current in-pit gold resources, as well as follow-up drilling of a significant new gold discovery reported earlier this year.

Zephyr Minerals Ltd. ("Zephyr") (TSXV: ZFR) is pleased to announce results for the first 7 holes of a 13 hole diamond drill program on the Windy Gulch zone of the Dawson gold project in Colorado, U.S.A.  These initial results confirm and expand on historic drilling and surface channel sampling results which identified an at surface and near surface gold zone with very attractive grades.  Drill holes of particular note include WG-13-08 and WG-13-14 which intercepted 7.2 meters grading 7.9 grams per tonne (g/t) gold and 7.3 metres grading 9.7 g/t gold respectively. Channel sampling of a newly established roadcut located approximately 50 metres east of the historic easterly roadcut and directly above drill holes WG-13-08 to WG-13-10, assayed 7.6 g/t gold over a width of 11.9 metres.  This zone remains open to the east and at depth. Selected results for the first 7 holes are presented in the table below:

77.8 g/t (2.3 opt) Gold Over 0.7m (2.3ft) FC-13-065U; 67.4 g/t (2.0 opt) Gold Over 0.3m (1.0ft) FC-13-064U; 23.4 g/t (0.7 opt) Gold Over 1.4m (4.5ft) FC-13-063U

Klondex Mines Ltd. (TSX: KDX) (OTCQX: KLNDF) today confirms mineralization in the new West Zone at its Fire Creek gold project in Nevada. Five holes drilled west from drill station 9 affirm new mineralization extending south from the vent-raise access discovery (Figure 1). The longest interpreted vein now extends at least 97.5m (320ft) to the south from the vent raise access discovery. Significant mineralization was intercepted in all five drill holes.

Initiating Engineering Study to Implement Long Term Test and Bring New Oil to Market

Gran Tierra Energy Inc. ("Gran Tierra Energy") (NYSE MKT: GTE, TSX: GTE), a company focused on oil exploration and production in South America, today provided updates for its exploration drilling in Peru.

"Gran Tierra Energy has successfully completed testing of the sidetrack on the Bretaña Norte 95-2-1XD exploration well in Peru, with results supporting the significant potential production additions expected from the Bretaña field," said Dana Coffield, President and Chief Executive Officer of Gran Tierra Energy.

Alpha Minerals Inc. (TSX VENTURE:AMW)(FRNAKFURT:E2GA) ("Alpha" or "the Company") and its 50% Joint Venture partner Fission Uranium Corp. (formerly Fission Energy Corp.) are pleased to report assay results from three drill holes within zone R00E at their Patterson Lake South ("PLS") property, and two drill holes on regional targets.

Results confirm and extend near surface, high-grade mineralization at the R00E zone. Drill hole PLS13-059 returned 20.5m at 8.57% U3O8, including 9.5m @ 17.78% U3O8. With a Grade x Thickness (GT) value of 175.7 for this interval, this is now the R00E zone's best mineralized hole to date, surpassing hole PLS13-043 which intersected 22.0m at 4.8% U3O8 (see news release dated May 16, 2013).

Bayfield Ventures Corp. (TSX VENTURE:BYV)(PINKSHEETS:BYVVF)(FRANKFURT:B4N) is pleased to announce additional assays from the continuing exploration of its 100% owned Burns Block gold-silver project located in the Rainy River District of north-western Ontario. The Company's Burns Block property is ideally situated adjacent to the east of Rainy River Resources' main multi-million ounce gold-silver deposit and to the west of their expanding Intrepid gold-silver zone.

Rainy River District Gold Zones:

http://www.bayfieldventures.com/i/maps/BYV-Burns-Gold-Zones-NOV-2012.jpg

 PNG Gold Corporation ("PNG Gold" or the "Company") (TSX VENTURE:PGK) is pleased to announce gold and silver assay results from 11 diamond drill holes from Imwauna Main Structure. Several holes in Table #2 were previously announced on March 12, 2013 some of which contained only partial gold and silver assay results.

Table #1 highlights the assay results from hole IMH-272 which contain highly prospective gold grades, typical of low sulphidation epithermal deposits and known to occur along the Imwauna Main Structure from previous drilling programs. Since January 2013 the company has drilled 45 diamond drill holes for a total of 14,038.75 metres on the Imwauna Main Structure. Final assay results have been received for all of the holes noted in Table #2.

Solvista Gold Corporation ("Solvista" or the "Company") (TSX VENTURE:SVV)(OTCQX:SVVZF) is pleased to announce the completion of its 8,000 metre, Phase 1 drill program on three separate targets within the Caramanta Porphyry Cluster at its Caramanta Project. The Company is also pleased to release the results of seven additional drill holes on its El Retén gold-copper discovery (the first of the three targets drilled within the Caramanta Porphyry Cluster) completed as part of the Phase 1 drill program. These results further support the Company's model that the Caramanta Porphyry Cluster represents a cluster of related mineralized bodies and as such, has the potential to host significant new gold-copper porphyry discoveries in the Middle Cauca Belt of Colombia.

PREMIER GOLD MINES LIMITED (TSX:PG) is pleased to announce additional high-grade results from ongoing drilling at the Company's Trans-Canada Property in Northwestern Ontario. Drilling has discovered a parallel gold-bearing horizon within 250 metres of surface and continues to confirm extensions to several horizons.  New highlight intercepts include:

FX Energy, Inc. (FXEN) reported that the Tuchola-3K well flowed gas at rates ranging from 3.8 to 5.5 million cubic feet of gas per day with no water during a production test.  The Company plans to collect the final data from the downhole pressure gauges and finish completing the well for production.

"The Tuchola-3K test raises the real possibility of opening a significant new exploration play for us in Poland," said David Pierce, President and CEO of FX Energy.  "We intend to follow up the successful test with 3-D seismic acquisition covering approximately 100 square kilometers and drill one or two more wells this year in the Edge concession area in north-central Poland where the Tuchola-3K is located.  The additional seismic and drilling will help us to determine the potential of this area and specifically the reserves in the structure where the Tuchola-3K well is being completed for production."

Oramed Pharmaceuticals Inc. (ORMP) (http://www.oramed.com), a developer of oral drug delivery systems, announced today that the United States Food and Drug Administration (FDA) has cleared the Company's Investigational New Drug application(IND) for ORMD-0801, its oral insulin capsule.

"We are very pleased to have the FDA clearance to proceed," stated Nadav Kidron, CEO of Oramed. "The upcoming trial is a major milestone for Oramed and we look forward to continuing to progress ORMD-0801's clinical development in the US."

Alpha Minerals Inc. (TSX VENTURE:AMW)(FRANKFURT:E2GA) ("Alpha" or "the Company") and its Joint Venture partner Fission Uranium Corp. (formerly Fission Energy Corp.) are pleased to report assay results from another nine holes from the R00E zone at its Patterson Lake South ("PLS") Property. The assays show a continuous area of broad uranium mineralization at shallow depth. Of particular note is hole PLS13-043 which returned an interval of 22.0m at 4.8% U3O8. With a Grade x Thickness (GT) product value of 105.6, representing the best GT interval to date from the R00E Zone.

Orefinders Resources Inc. (TSX VENTURE:ORX) reports additional high grade gold results from six more drill holes (1,866 m) from its phase II diamond drilling program at the Mirado Gold Project in Kirkland Lake, Ontario. Highlights include hole MD13-19 which intersected32.54* g/t Au (uncut) over 5.90 meters of consistent bonanza grade mineralization (see Table 1) within an interval of 14.50 meters at an average cut grade of 8.10 g/t Au. These latest results demonstrate good continuity of near surface high grade gold mineralization over broad widths in the South Zone, where recent drill results included 9.50m @ 59.2* g/t Au (Hole MD13-07) and 4.30 m @ 17.2* g/t Au (uncut) in hole MD13-06.

- Kimberlite discovered at Tsabong North Project has a +20 hectare aeromagnetic anomaly associated with it - Two additional diamond drill core holes will be completed to intersect a minimum of 100 meters of kimberlite - Additional undrilled kimberlite targets in the project area have the same magnetic signature

Pangolin Diamonds Corp. (TSX VENTURE:PAN) (the "Company" or "Pangolin") is pleased to announce it has discovered its first kimberlite at its 100% owned Tsabong North Project in Botswana. Core logging identified crater facies sediments and underlying reworked volcaniclastic kimberlite ("RVK") breccias in drill hole "Magi-01/1".

 Africa Oil Corp. (TSX VENTURE:AOI)(NASDAQ OMX:AOI) ("Africa Oil" or the "Company") is pleased to announce that Tullow Oil Plc, the operator of Block 10BB in Kenya, has commenced drilling at the Etuko (formerly Kamba) prospect. This well will target a new play area in the Lockichar Basin where a working petroleum system has been confirmed by recent discoveries at Ngamia and Twiga. The well will focus on the 'eastern flank play' where oil was discovered in 1992 by Shell at the Loperot-1 well. The primary objectives will be the Lower Lokhone and Auwerwer sands, both of which have been shown to be high quality reservoirs containing oil in existing wells. The gross best estimate of prospective resources for the prospect are 231 million barrels of oil based on a third-party Competent Person's Report*. The well is expected to take approximately 60 days to drill and evaluate.

GTA Resources and Mining Inc. (TSX VENTURE:GTA) reports results for the initial five holes (WB-13-36 to WB-13-40) completed in its Phase 4 drill program on the Northshore Property, located 80 km west of Hemlo in northwest Ontario. The current program commenced in mid-March and is scheduled to include a minimum of 2500 meters of drilling focused on testing a number of extensions to the Afric Gold Zone. To date, a total of 1698 meters has been completed in nine holes and the program has been temporarily suspended due to winter break-up conditions. Drilling is scheduled to resume by the end of May, pending weather conditions.

(Under 70% Option Agreement From Redstar Gold), Red Lake District, Ontario

Confederation Minerals Ltd. (TSX VENTURE:CFM) is pleased to report results from the latest drill holes from the Newman Todd gold project, located in the Red Lake mining district. The interpretation of the geological controls affecting mineralized zones is now beginning to demonstrate continuity along strike and down dip, resulting in a high success rate in recent targeted drilling. The wide, 7 metre intersection grading 32.57 g/t gold, just approximately 150 metres below the surface, is an example of results based on our current geological model.